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20 Best Electric Tankless Water Heater For Rv (Jan 2023 Update)
Are you looking for the Best Electric Tankless Water Heater For Rv? If so, you’ve come to the right place.
Choosing the Best Electric Tankless Water Heater For Rv can be difficult as there are so many considerations, such as A. O. Smith, Eccotemp, Eemax, Marey, Noritz, Rheem, Stiebel Eltron. We have done a lot of research to find the Top 20 Best Electric Tankless Water Heater For Rv available.
The average cost is $355.84. Sold comparable range in price from a low of $145.35 to a high of $811.31.
Based on the research we did, we think Rheem RTEX-18 18KW Tankless Electric Water Heater is the best overall. Read on for the rest of the great options and our buying guide, where you can find all the information you need to know before making an informed purchase.
20 Best Electric Tankless Water Heater For Rv (20 Sellers)
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Reviewers Noted:
Ease of setup . Craftsmanship
Features:
- External digital thermostatic control with led display (+/1 degree accuracy)
- Most advanced self-modulation, adjust power to meet hot water demand
- Durable copper immersion two heating elements, field serviceable
Reviewers Noted:
Poorly made . Heating speed . Ease of setup
Features:
- On demand, consistent and endless hot water
- Compact and stylish with digital temperature control in increments of 1°f ranging from 80°f to 140°f
- 99.8% energy efficient. external controls to adjust temperature in increments of 1°f
Reviewers Noted:
Search . Easy to set up . Ease of use . Compact . Craftsmanship
Features:
- German-designed with high quality stainless steel water channel and heating chamber.
- Requires (1) 60 amp breaker and must be installed by a professional plumber or electrician to ensure safety and quality.
- Marey's eco line can maintain 98% efficiency level throughout their lifetime.
Reviewers Noted:
Compact . Heating speed . Ease of setup . Craftsmanship . Noise level
Features:
- Tankless water heater
- 54 max amps
Reviewers Noted:
Craftsmanship
Features:
- Never run out of hot water with an ecosmart tankless water heater
- Easy to install,can be installed with either 208v, or 220v
- Digital temperature display in 1-degree increments
Reviewers Noted:
Performs well . Craftsmanship . Ease of setup . Ease of use . Size
Features:
- Part number
- Item weight
- 0.01 ounces
Reviewers Noted:
Heating speed . Craftsmanship
Features:
- External digital display, shows outlet temperature
- Durable copper immersion single heating element, field serviceable
- Simple installation: 3 foot electric cable included; bottom 1/2 inch npt water connections
Reviewers Noted:
Heats quickly . Easy to set up . Compact . Craftsmanship . Ease of use
Features:
- On-demand, continuous and unlimited supply of hot water
- Sleek design saves space and no venting required
- Electronic switch activated for virtually silent operation. phase- single 60 hz. voltage- 208 v. wattage- 27 kw
Reviewers Noted:
Heating speed . Ease of setup . Size . Craftsmanship
Features:
- Compact size saves valuable storage space save energy
- Patented self-modulating technology adjusts energy based on hot water needs save time
- No venting, unit can be installed directly at the point-of-use save money
Reviewers Noted:
Heats quickly . Craftsmanship . Visual appeal
Features:
- Serves 2 sinks + 1 shower
- Simple and secure operation
- Easy and quick installation
Reviewers Noted:
Heating speed . Ease of setup . Size
Features:
- Energy and cost savings: heats water only when it is needed for savings of up to 50% on water heating costs when used in a point-of-use application
- Space savings: small compact design fits perfectly in tight places like under cabinets and sinks
- Easy to maintain: durable easy-to-replace heating elements
$559.00
4.3
Reviewers Noted:
Heating speed . Ease of setup . Size
Features:
- Space savings: small, compact design fits perfectly in tight places like under cabinets and sinks
- Great investment and value: energy cost savings
- Easy to maintain: durable, easy-to-replace heating elements
Reviewers Noted:
Easy to set up . Well made . Heats quickly . Compact . Ease of use
Features:
- Airthereal electric tankless water heaters deliver a continuous flow of hot water. with no need to reheat more water in the tank, saving up to 50% on your water heating…
Reviewers Noted:
Search . Compact . Heats quickly . Easy to set up . Easy to use
Features:
- Product type: tankless water heater csa listed: yes voltage: 240 volt wall mountable: yes power source: electric amperage: 66 amps warranty: 1 year maximum pressure: 150 psi water connection size:…
Reviewers Noted:
Size . Ease of use
Features:
- Provides continuous hot water for ultimate convenience
- Patented self modulating technology and design
- Designed with standard and reliable easy to service elements and hea
Reviewers Noted:
Compact . Easy to set up . Well made . Heating speed
Features:
- Smart microprocessor technology unique to tempra water heaters delivers steady water temperature even when flow rate vary as taps are adjusted
- Self-modulating technology saves energy by adjusting electrical usage
- Tempra tankless electric water heaters must be correctly sized and you should consult the sizing guide to determine the correct model for you
$499.99
4.9
Reviewers Noted:
Compact . Heating speed . Ease of use
Features:
- Can serve up to 6 applications (4 showers and 2 faucets in in warm to hot climates).
- Reference the performance guide to confirm this unit will provide sufficient hot water to meet your need.
- Requires 3 x 40a double-pole breakers, 3 x 8/2 awg wires, 240v.
$685.51
4.5
Reviewers Noted:
Ease of setup . Ease of use . Noise level
Features:
- Convenient tankless hot water heater: 17.3 kw tankless whole house electric water heater provides hot water when needed, for as long as needed
- Easy installation: can be installed virtually anywhere for commercial or residential applications
- Consistent temperature: polymer encased elements & built-in flow sensor ensures constant output temperature
$159.00
4.0
Reviewers Noted:
Ease of setup . Compact . Noise level
Features:
- Major energy savings
- Extremely compact design saves space
- Proven reliability
$181.74
4.3
Reviewers Noted:
Ease of use
Features:
- Ideal for a point of use water heating.
- Saves significant water, electricity and space.
- Requires very little water pressure for activation.
1. Rheem Rtex-18 18kw Tankless Electric Water Heater
Product Details:
Ideal for a large apartment/townhome with up to 3 people. the rtex-18 is the mid-range model that can heat over 2.5 gallons per minute. it can handle a shower and a sink in cool climates. in warmer climates, it can handle two showers and two sinks on demand, consistent and endless hot water. 99.8% energy efficient. compact and stylish design with digital temperature control. simple installation. save space. save water. robust copper immersion heating element. advanced self-modulation, adjust power to meet hot water demand. element threaded for easy replacement. save energy.
Specifications:
| Item – Water Heaters | Electric Tankless Water Heater |
| Water Heater Design | Whole House |
| Water Heater Application | General Purpose |
| Commercial / Residential | Both |
| Watts – Water Heaters | 18,000 |
| Amps – Water Heaters | 75 |
| Voltage – Water Heaters | 208/240 |
| Min. Flow Activation | 0.30 gpm |
| Phase – Water Heaters | 1 |
| Temp. Range – Water Heaters | 59 Degrees to 140 Degrees F |
| Standards | UL 499, CSA |
| Amps AC | 75 |
| Default Temperature | 120 Degrees F |
| Temp. Rise @ 6.0 GPM | Limited to Thermostatic Setting |
| Phase | single |
| Tank Capacity | 18 gal. |
| Max. Flow Rate | 4 gpm |
| Elements | Lead-Free Replaceable Cartridge Insert |
| Fuel Type | Electric |
| Temp. Range | 59 Degrees to 140 Degrees F |
| Water Connection | 3/4" NPT |
| Height to Top of Vent Connection | 18.25" |
| Voltage | 208/240VAC |
| Residential / Commercial | Both |
| Mounting | Wall |
| Vent Type | Tankless Electric |
| Pressure Range | 25 to 150 psi |
| Temp. Rise @ 4.0 GPM | 31 Degrees F |
| Height to Top of Heater | 18.25" |
| Temp. Rise @ 2.5 GPM – Water Heaters | 49 Degrees F |
| Wire Size | 8 AWG |
| Temp. Rise @ 2.5 GPM | 49 Degrees F |
| Environment | Indoor |
| Element Material | Copper |
| Current | 75 A |
| Minimum Water Pressure | 25 psi |
| Temperature Range | 80 Degrees F to 140 Degrees F |
| Adjustable Thermostat | Yes |
| Minimum Flow Activation | 0.3 gpm |
| Cord Conductor Gauge | 8 AWG Wire |
| Water Connection Location | Bottom |
| Control Type | Dial, Digital Display with Keypad |
| Maximum Water Pressure | 150 psi |
| Cold Inlet Size | 3/4 in |
| Power Consumption | 18,000 W |
| Overall Dimensions – H x W x D | 18.25 in x 8.25 in x 3.5 in |
| Market | Residential |
| Mounting Type | Wall Mounting |
| Maximum Flow Rate | 7 gpm |
| Operating Voltage | 240V AC |
| Country of Origin (subject to change) | China |
Reviews:
Works great as long as you don't want to take a hot shower. Constant E5 code (cannot keep up with water flow) and shuts down the hot water so all you get is a cold shower. If you let the water just barly trickle outthen it heats up fine. I lost a lot of money setting this up only to find that it will not work unless the water is already warm. Now I have to spend more money to buy a tank hot water heater. Very disappointingRussell Randant
The tank failed and got water all in my house! I sent a warranty claim but never heard any response. I have sent pictures etc to show the product failed again i have yet to hear any response about the issue! Also i used the charts to decide what heater was right for my house but the unit never performed to our liking. It would barely put any water out if i would increase the flow it wouldnt heat the water up. Please contact me i'd love to share more detail.Daniel L
This water heater cannot handle 4.4 gallons per minute. It could not even keep up with my shower or kitchen faucet. It requires a lot of power too. It takes two 40 amp breakers and 8 guage wire to power the elements. When it cannot keep up, it flashes an error code and the troubleshooting guide suggests putting a flow regulator that limits it to 2 gallons per minute (less than half its advertised capacity).claytomcge_6
2. Rheem Rtex-04 Electric Tankless Water Heater
Product Details:
Energy-efficient rheem electric tankless water heater only heats water when you need it and features an external temperature display and control, and self-modulating power technology. compact model can save energy, water, and is ideal for delivering unlimited hot water in commercial and residential applications. requires no venting, t&p valve, or drain pan to help ease installation. includes durable brass or stainless steel heat exchanger and a field serviceable element.
Specifications:
| Item – Water Heaters | Electric Tankless Water Heater |
| Water Heater Design | Point-of-Use |
| Water Heater Application | Undersink |
| Commercial / Residential | Both |
| Watts – Water Heaters | 3500 |
| Amps – Water Heaters | 29 |
| Voltage – Water Heaters | 120 |
| Min. Flow Activation | 0.30 gpm |
| Phase – Water Heaters | 1 |
| Temp. Range – Water Heaters | 59 Degrees to 140 Degrees F |
| Standards | UL 499, CSA |
| Elements | Lead-Free Replaceable Cartridge Insert |
| Amps AC | 29 |
| Water Connection | 1/2" NPT |
| Default Temperature | 120 Degrees F |
| Height to Top of Vent Connection | 5.88" |
| Mounting | Wall |
| Pressure Range | 25 to 150 psi |
| Temp. Rise @ 6.0 GPM | Limited to Thermostatic Setting |
| Residential / Commercial | Both |
| Voltage | 120 VAC |
| Height to Top of Heater | 5.88" |
| Temp. Rise @ 0.5 GPM | 48 Degrees F |
| Wire Size | 10 AWG |
| Vent Type | Tankless Electric |
| Temp. Range | 59 Degrees to 140 Degrees F |
| Tank Capacity | 3.5 gal. |
| Fuel Type | Electric |
| Max. Flow Rate | 1 gpm |
| Phase | single |
| Watts | 3500 |
| Minimum Flow Activation | 0.3 gpm |
| Control Type | Digital Display with Keypad |
| Cord Conductor Gauge | 10 AWG Wire |
| Temperature Range | 80 Degrees F to 140 Degrees F |
| Minimum Water Pressure | 25 psi |
| Housing Material | Brass |
| Environment | Indoor |
| Mounting Type | Wall Mounting |
| Adjustable Thermostat | Yes |
| Maximum Flow Rate | 1.5 gpm |
| Current | 29 A |
| Element Material | Copper |
| Maximum Water Pressure | 150 psi |
| Power Consumption | 3,500 W |
| Market | Commercial, Residential |
| Operating Voltage | 120V AC |
| Overall Dimensions – H x W x D | 5.88 in x 10.88 in x 2.75 in |
| Cold Inlet Size | 1/2 in |
| Country of Origin (subject to change) | China |
Reviews:
I've got a large house and more children than most. This unit produces sufficient hot water to run several showers at once and never run out, which is the main point. I'm very pleased with this unit. There's one oddity however; When first starting-up, the water temperature gradually increases until the set-point arrives at the delivery spot and holds there for a few moments, then the temperature wanes to lukewarm/cool, then back to specified temperature. This can be quite a jolt to the system if the user isn't prepared 🙂 But the change is gradual enough to get out of the way in time. This is annoying. The display alternates between my chosen set point "130 F" and "E5", which I assume is an error code. But none of the online documentation provides an error code key from which to ascertain the issue. I have two three-way valves in my installation which allows me to run my system in tankless only, tank only, or tankless preheat followed by tank. In the summer I run tankless only, in winter I typically run tankless as preheat and draw from the tank unit.Engineer Dude
i had it professionally installed and its keeps popping a fuse and stops working all the time . i think it finally completely failed after 1 years of use only and 900 later. i home RHEEM will send me replacement as its under warranty. but seems liek its one of the worse ones to have. all bad ratings. i would like to upgrade to a better one.asta
3. Marey Eco110 Electric Tankless Water Heater – 11kw
Product Details:
Having a proper water heater for your home is essential when it comes to engaging in everyday tasks. the marey eco110 electrical tankless water heater provides a reliable solution while helping you cut down on energy costs. with 11 kilowatts of power, you'll experience efficient heating and flow rate. the water heating unit features heating increases every 28-degrees fahrenheit at a 3 gmp flow rate. enjoy 1 point of use as the water heater can provide hot climates the moment the faucet is opened. the heater is easy to use with the included lcd digital panel for clear readings, controls, and a user-friendly operation. designed with durability in mind, the stainless steel water channel and heating chamber feature long-lasting use and years of providing you hot water. plus, the corrosion-resistant heating element help prevents water build-up from chlorine and calcium for added sustainability. please have a professional plumber or electrician install the heater no more than 40 feet from the intended point of use for the highest safety and quality. have the hot water you deserve at a lower energy consumption with the marey eco110 tankless water heater.
Specifications:
| Required Volt Connection | 220 volt |
| Application Type | Residential |
| Indoor/Outdoor | Indoor |
| Efficiency Level | Super High |
| Fuel Type | Electric |
| Amperage (amps) | 60 A |
| Electricity Phase | Single Phase |
| Finish Family | White |
| Flow Rate @ 35°F Rise (gallons/min) | 2.25 gal (US)/min |
| Flow Rate @ 45°F Rise (gallons/min) | 1.6 gal (US)/min |
| Flow Rate @ 55°F Rise (gallons/min) | 1.5 gal (US)/min |
| Flow Rate @ 65°F Rise (gallons/min) | 1.25 gal (US)/min |
| Maximum Temperature (F) | 95 °F |
| Minimum Activation Rate (gpm) | 0.53 |
| Minimum Temperature (F) | 40 °F |
| Number of Elements | 1 |
| Number of Showers | 1-2 |
| Pack Size | 1 |
| Uniform Energy Factor | 0.98 |
| Water Heater Features | Digital Display,Wall Mounted |
| Certifications and Listings | ETL Listed |
| Product Width (in.) | 7.5 in |
| Water Connection Size (in.) | 1/2 in |
Reviews:
It works fine, but it arrived in a shipping box with no manufactruer box inside, just the water heater. One of the dials has come lose and I had to screw it back on. There was no manual. There was no power cord, but it may not have come with one ( I couldn’t tell you since I didn’t get a box or a manual). There was water inside the unit. I think someone must have gotten it before me and then returned it and factory pure didn’t notice- that or the falsely sold me a used unit. I went ahead and installed it, though, because I had already opened up my water line and removed the old unit. If anyone from factory pure is reading this, I’ll forgive you for a fifty dollar partial refund- that’s about what I’d have expected to save by buying used.cade j.
As for the breaker tripping in other homes, as a licensed electrician of 26 years, I would advise you to take an amperage reading during operation. Most home owners do not have multi meters with an amp clamp so that could be difficult I understand. If the heater is not drawing over 55 amp during operation you may have a defective circuit breaker, it happens. Try replacing your breaker. If the heater is drawing over 55 amps ther is a problem with the heater.Andy A.
4. Titan Electric Tankless Water Heater N-120
Product Details:
The titan n-120 is the most popular model for a two-bath house with less than 1,500 sq.ft. on warmer climates. this space saving water heater will provide “endless” hot water for your entire home, apartment and other locations. as the titan only heats the water when it is needed your energy savings on hot water can be up to 60%! in many cases your energy savings in the first year will pay for your investment in a state of the art titan tankless water heater. the titan n-120 will replace an entire conventional tank heater with no disruption to your comfort. let’s not forget the endless hot water you will experience. you won’t have to worry about running out of hot water for your guests after repeated showers! the titan is recommended for warmer climates where the incoming water temperature is above 65 degrees (f).
Specifications:
Reviews:
Works great I would recommend it to any one I got a few rent houses I will be putting it in themferrervettori
SUPPLIES AN OFFICE AND A APARTMENT WITH BETWEEN 2-4 PEOPLE ALWAYS, ALWAYS HOT . NO MORE BIG TANKS FOR US! EASY TO INSTALL LOVE IT!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!rascoparts
5. Ecosmart Pou 6 Point-Of-Use Electric Tankless Water Heater
Product Details:
Ecosmart pou 6 is a 6-kilowatt tankless electric water heater ideal for point-of-use hand washing applications, and great in places like bathrooms, bars, strip malls, doctor's offices, boats, recreational vehicles (rv). it has a maximum flow rate of 1.0 gallons per minute (gpm) and includes a 0.5 gpm sink aerator. this product is recommended for use with a single sink only. do not use with a shower or multiple fixtures. to select the best solution for your hot water needs, please refer to the sizing guide. with ecosmart you will be happier knowing the warm water you expect is available endlessly, consistently, and on-demand, allowing you to reduce your water and energy waste. now that feels warm all over! ecosmart – sharing the warmth.
Specifications:
| Height | 6" in. |
| AMPS | 30 Amps |
| Volts | 220 V |
| Watts | 6500 |
| Depth | 3" in. |
| Width | 11" in. |
| Warranty | 1 Yr |
| Power Source | Electric |
| Maximum Pressure | 150 psi |
| Maximum Temperature | 80 °F |
| Water Connection Location | Top |
| Commercial or Residential | Residential |
| CSA Listed | Yes |
| Each Weight | 4.500 LB |
| Energy Star Certified | No |
| Hazardous Material | No |
| Minimum Temperature | 55 °F |
| Tankless | Yes |
| Velocity | C |
| Water Connection Size | 1/2" |
| Product Type | Water Heater |
Reviews:
Nicely made unit. I had to put it a tough place to get at under the kitchen sink. So far it does what it is supposed to. I've installed two other manufactures units. One was an A.O.Smith. It took longer to put the power leads to the actual unit than necessary. It works fine but the design leaves much to be desired.Michael
Hotwater! Works great! Adjust pressure to keep hot running.Dewayne
6. Rheem Rtex-13 Professional Classic Electric Tankless Hot Water Heater
Product Details:
Rheem rtex-13 electric water heater – provides easy hot water in your household the rheem 13kw tankless water heater provides amply heated water for your entire household. this unit permits reduced power consumption with 99.8% energy efficiency factor. the compact profile has a small footprint that while permitting an easy installation saves a lot of space. the included automatic thermostat keeps the water at a desired temperature. with a robust copper element, you can instantly heat the water for your entire household.
Specifications:
| Operating Voltage | 240V AC |
| Phase | Single |
| Cold Inlet Size | 1/2 in |
| Maximum Flow Rate | 4.8 gpm |
| Minimum Flow Activation | 0.3 gpm |
| Overall Depth | 3.63 in |
| Overall Height | 12.63 in |
| Overall Width | 8.25 in |
| Power Consumption | 13,000 W |
| Adjustable Thermostat | Yes |
| Current | 54 A |
| Environment | Indoor |
| Market | Residential |
| Control Type | Dial, Digital Display with Keypad |
| Cord Conductor Gauge | 6 AWG Wire |
| Default Temperature | 120 Degrees F |
| Element Material | Copper |
| Includes | 1/2 in NPT Adapters |
| Maximum Water Pressure | 150 psi |
| Minimum Water Pressure | 25 psi |
| Mounting Type | Wall Mounting |
| Water Connection Location | Side |
Reviews:
i had it professionally installed and its keeps popping a fuse and stops working all the time . i think it finally completely failed after 1 years of use only and 900 later. i home RHEEM will send me replacement as its under warranty. but seems liek its one of the worse ones to have. all bad ratings. i would like to upgrade to a better one.asta
7. Rheem Rtex-06 240v Electric Tankless Water Heater
Product Details:
With a flow rate of 1.5gpm, this water heater from rheem is a great fit for personal and commercial applications. the smartly designed heating unit has a simple installation99.8% energy efficient, this heater saves on precious electricity. the heating element comes with a brass top for a durable performance, power: 5.5k – w/240v.
Specifications:
| Operating Voltage | 240V AC |
| Phase | Single |
| Cold Inlet Size | 1/2 in |
| Maximum Flow Rate | 2 gpm |
| Minimum Flow Activation | 0.3 gpm |
| Overall Height | 5.88 in |
| Overall Width | 10.88 in |
| Overall Depth | 2.75 in |
| Power Consumption | 6,000 W |
| Adjustable Thermostat | Yes |
| Current | 29 A |
| Environment | Indoor |
| Market | Commercial, Residential |
| Control Type | Digital Display with Keypad |
| Cord Conductor Gauge | 10 AWG Wire |
| Default Temperature | 120 Degrees F |
| Element Material | Copper |
| Housing Material | Brass |
| Maximum Water Pressure | 150 psi |
| Minimum Water Pressure | 25 psi |
| Mounting Type | Wall Mounting |
| NEMA Rating | Not Rated |
| Standards | CSA Certified, ETL Listed, UL 499 |
Reviews:
For the price you can't beat it. It will increase water Temperature 40 to 50 Degrees , which means if it's freezing outside , as is not working very well , BUT , I can tell you how to Make it Hotter. Put a T in the hot water side , then a valve, then a One Way Check valve, and then T back into the Cold water side ,, which also needs a One Way valve before your T . This heats the Cold water going into the heater and , makes it 15 degrees hotter mine was up to 130 degrees with outside air temp, around 40 .Zoro
Good quality and good solution.rey9009
Returning it for a unit with more output.codyvonsnozer
8. Stiebel Eltron Tempra 36 Plus Whole House Electric Tankless Water Heater
Product Details:
Powerful output, compact design, remarkable energy-saving features. our whole house electric tankless water heaters perform with the highest standards for comfort and reliability. tempra plus models feature advanced flow control, patented in germany and exclusive to stiebel eltron tankless heaters. if hot water demand exceeds working capacity, advanced flow control automatically maintains consistent temperatures by slightly reducing flow. intelligent self-modulating technology continually ensures the least amount of energy is used to heat the water. a tempra 36 plus provides hot water at a consistent temperature for 3-4 bathrooms in warm climates, or 2-3 bathrooms in cool climates. see sizing to determine which model is best for you. stiebel eltron invented tankless electric water heating technology more than 90 years ago, and is still the industry pioneer and world leader. our engineering and manufacturing tradition of excellence means you can depend on the performance and reliability of our products.
Specifications:
| Item – Water Heaters | Electric Tankless Water Heater |
| Water Heater Design | Whole House |
| Water Heater Application | General Purpose |
| Commercial / Residential | Both |
| Watts – Water Heaters | 36,000 |
| Amps – Water Heaters | 150 |
| Voltage – Water Heaters | 208/240 |
| Min. Flow Activation | 0.77 gpm |
| Phase – Water Heaters | 1 |
| Temp. Range – Water Heaters | 70 Degrees to 140 Degrees F |
| Temp. Rise @ 1.5 GPM | 92 Degrees F |
| Temp. Rise @ 2.5 GPM – Water Heaters | 90 Degrees F |
| Pressure Range | 30 to 150 psi |
| Mounting | Any Direction |
| Standards | ETL Listed, WQA |
| Default Temperature | 140 Degrees F |
| Temp. Rise @ 6.0 GPM | 41 Degrees F |
| Wire Size | 6/2 AWG |
| Water Connection | 3/4" NPT |
| Temp. Rise @ 0.5 GPM | 92 Degrees F |
| NEMA Rating | 1 |
| Max. Flow Rate | 1 gpm |
| Elements | Copper Sheathed Housed in Cylinder |
| Market | Commercial, Residential |
| Current | 44 A, 50 A |
| Cord Conductor Gauge | 8/2 AWG Wire |
| Mounting Type | Wall Mounting |
| Minimum Flow Activation | 0.77 gpm |
| Overall Dimensions – H x W x D | 14.5 in x 16.63 in x 4.63 in |
| Minimum Water Pressure | 30 psi |
| Mounting Orientation | Horizontal, Vertical |
| Temperature Range | 70 Degrees F to 140 Degrees F |
| Cold Inlet Size | 3/4 in |
| Operating Voltage | 208/240V AC |
| Environment | Indoor |
| Element Material | Copper |
| Maximum Flow Rate | 1 gpm |
| Adjustable Thermostat | Yes |
| Maximum Water Pressure | 150 psi |
| Power Consumption | 36,000 W |
| Country of Origin (subject to change) | Germany |
Reviews:
I was hoping for so much from this product. Yesterday I took such a hot shower during lunch and then that evening when I gave my daughter a bath, it only came out lukewarm. My shower today was borderline cold. Tomorrow it may be hot again. I live in Northern VA and would not recommend this product. It ruins the experience of our new bathroom remodel. There's nothing worse than remodeling your bathroom to your dream bathroom and hearing your wife say, well that bath wasn't relaxing since she couldn't get hot water.ChristianMC
We purchased this unit about 1 month ago, replacing a Natural Gas water heater with 40g tank. The savings in space, and the removal of the fossil fuel device were our key drivers for this purchase. Our Electric bill has increased significantly, by about 50%, but because we never run out of hot water, showers tend to be longer. And now we can actually fill our tub with hot water without boiling extra water on the stove, so this also has increased our usage. There is an issue with temperature stability, when a toilet is flushed or other demand for water is turned on, the temperature swing is very noticeable. I have added a shower temp gauge, and have seen the temp drop from 42c to 39c when a toilet is flushed, it takes about 10-15 seconds to recover, and likewise, when the water demand drops, the temp goes up from 42c to 44.5c for several seconds. This shower valve has a pressure regulated flow control, so changes in the water will take some time to correct. Pros: Save on Space, endless hot water, retired fossil fuel appliance, not storing heated water we aren't using. Cons: High electricity costs, temperature changes when pressure changes for several secondsChris
Don't buy it…it's terrible,I bought the tempra24 plus from home depot, I installed all specified wires and circuits so it would work properly and efficiently but this this is horrible… my electric and water bill did go down even more than I had Anticipated but hate it…No constant temperature what so ever. I'm getting it removed and getting one installed by a professional.. the tempraplus was a waste of moneyBrian Lackie
9. Ecosmart 220v Electric Tankless Water Heater
Product Details:
Looking for a efficient way to get hot water to a house bathroom or a business kitchen sink? the eco smart eco8 40 amp 240v electric tanless water heater can be installed in a few easy steps. the electric water heater is configured for incoming water of 67f and above. the heater is perfect for use with radiant heating system. made of stainless steel interior and designed with a copper heating element it is compact and stylish all in one energy efficient electric water heater.
Specifications:
| Assembled Depth (in) | 3.75 in |
| Assembled Height (in) | 12 in |
| Assembled Width (in) | 9.75 in |
| Assembled Weight (lbs) | 7 lbs |
| Item is Shipped at this Packaging Level | Y |
| Packaging Depth | 6.75 IN |
| Packaging Height | 13.5 IN |
| Packaging Width | 10.25 IN |
| Package Weight | 7 |
| Package Weight UOM | LB |
| Net Packaged Quantity | 1 EA |
| Water Heater Style | Tankless |
| Manufacturer Warranty | Limited Lifetime Warranty |
| Commercial / Residential | Residential |
| Flow Rate @ 45°F Rise | 1.2 gpm |
| Flow Rate @ 77°F Rise | 0.7 gpm |
| Gas or Electric | Electric |
| Temperature Pressure Relief Valve (TPR) | No |
| Temperature Range | 80°F – 140°F |
| Water Connection Size | 1/2" CF |
| Efficiency | .99 |
| Element Wattage (W) | 8000 W |
| Family Size | 2 |
| Foam Insulation | No |
| Height | 12 in |
| Width | 9.75 in |
| Weight | 7 lbs |
| Maximum BTU | 27297.136 BTU |
| Amperage (A) | 33 A |
| Voltage (V) | 240 V |
| Wattage | 8000 W |
| Energy Factor | 99.8 |
| ADA Compliant | Yes |
| CSA Certified | Yes |
| ETL Listed | Yes |
| UL Listed | Yes |
Reviews:
For about 6 months it was working fine, then I turned on the hot water and it came out cold. I noticed smoke coming from the unit (ECO 8) and immediately ran for the circuit breaker to shut off. I notified the Eco Smart company through their website contact page, but they never even responded. $200 out the window, but fortunately the house didn't catch fire! To make matters worse, no warranty if you install it yourself! I'm not calling a plumber and electrician for such a simple installation.wutsitsa
Got to me fast and a really great movie.annhen0
This works very well although installing the electricity part was somewhat difficult because of the wire size fitting junction boxes located in the nearby cabinets. Plumbing parts were all available at my local Home Depot. I've reduced the temperature from 120 degrees twice now to 105 because the water becomes quite hot, especially if you turn it off and then back on where it has an opportunity to heat in place rather than simply flowing through the unit. I'm only using it to rinse a few items in the kitchen sink rather than having to wait until the main hot water unit, located 75' away, reaches my sink. And I did need to use Teflon Tape on the provided, 1/2" fittings,….souian
10. Stiebel Eltron Dhc-E 12 Electric Tankless Water Heater
Product Details:
Stiebel eltron has been a world leader in advanced water heating technology for almost 90 years. our engineering excellence and high-quality manufacturing results in products fulfilling the highest expectations of performance & reliability. dhc-e tankless models are 99% efficient, heating water instantaneously and endlessly and, unlike tank water heaters, have no stand-by energy losses. no venting is necessary. the compact european design saves space, allows installation with the unit visible and gives the flexibility to install in the best location. a dhc-e 12 is ideal for residential and commercial point-of-use sink applications and single-shower whole-home use. it can be easily removed from a seasonal cabin or cottage for over-wintering. the dhc-e 12 is electronically controlled and can be set to deliver water at the temperature desired. the number of sinks a dhc-e 12 can supply depends on the incoming cold water temperature, the water flow through the unit, and the supply voltage.
Specifications:
| Item – Water Heaters | Electric Tankless Water Heater |
| Water Heater Design | Point-of-Use |
| Water Heater Application | Undersink |
| Commercial / Residential | Commercial |
| Watts – Water Heaters | 9000/12,000 |
| Amps – Water Heaters | 50 |
| Voltage – Water Heaters | 208/240 |
| Min. Flow Activation | 0.37 gpm |
| Phase – Water Heaters | 1 |
| Temp. Range – Water Heaters | 86 Degrees to 140 Degrees F |
| Temp. Rise @ 8.0 GPM | 8/10 Degrees F |
| Wire Size | 6 AWG |
| Residential / Commercial | Commercial |
| Temp. Rise @ 1.5 GPM | 41/55 Degrees F |
| Temp. Rise @ 2.5 GPM | 25/33 Degrees F |
| Temp. Rise @ 6.0 GPM | 10/14 Degrees F |
| Temp. Rise @ 2.5 GPM – Water Heaters | 25/33 Degrees F |
| Pressure Range | 150 psi |
| Watts | 9000/12,000 |
| Elements | Copper Sheathed Housed in Cylinder |
| Amps AC | 50 |
| Temp. Rise @ 4.0 GPM | 15/20 Degrees F |
| Phase | 1 |
| Mounting | Vertical |
| Temp. Range | 86 Degrees to 140 Degrees F |
| Water Connection | 3/4" NPT |
| Voltage | 208/240VAC |
| Hot Outlet Type | NPT |
| Operating Voltage | 208/240V AC |
| Power Consumption | 12,000 W |
| Minimum Flow Activation | 0.26 gpm |
| Hot Outlet Size | 3/4 in |
| Cord Conductor Gauge | 6 AWG Wire |
| Current | 50 A |
| Environment | Indoor |
| Adjustable Thermostat | Yes |
| Cold Inlet Size | 3/4 in |
| Market | Commercial, Residential |
| Temperature Range | 86 Degrees F to 140 Degrees F |
| Element Material | Copper |
| Mounting Orientation | Vertical |
| Mounting Type | Wall Mounting |
| Maximum Water Pressure | 150 psi |
| Cold Inlet Type | NPT |
| Overall Dimensions – H x W x D | 14.19 in x 7.88 in x 4.13 in |
| Application | Bathrooms, Break Rooms, Utility Sinks |
| Country of Origin (subject to change) | Germany |
Reviews:
Easy to install and seems to work well so far. Water is hot at the tap end which is a good thing.Reviewed by Heater Shop customer
I bought this tankless water heater several years ago to put in a trailer house at the lake. It worked so well that I bought a second one for a houseboat. I read many reviews on different brands and decided on the Stiebel Eltron after researching. I have been completely satisfied and am glad that I chose this particular brand. #sweepstakesBG
11. Rheem Performance 8 Kw Self-Modulating 1.55 Gpm Electric Tankless Water Heater
Product Details:
Reduce energy use and save on costs with this rheem performance tankless electric point-of-use water heater. ideal for compact areas, such as under sinks, this unit provides enough hot water for up to three faucets and one shower. it saves by only heating water when needed, based on geographic location (see selection guide). a 1 x 40 amp double pole breaker is required for this water heater, which features an electronic temperature control that adjusts from 80 to 140 degrees f in 1-degree increments. professional installation is recommended, as this low-maintenance tankless water heater is compatible with 1/2 in. water connectors for flex hose installation.
Specifications:
| Required Volt Connection | 240 volt |
| Application Type | Residential |
| Indoor/Outdoor | Indoor |
| Efficiency Level | Super High |
| Fuel Type | Electric |
| Wattage (watts) | 8000 W |
| Number of Showers | 1-2 |
| Amperage (amps) | 57 A |
| Electricity Phase | Single Phase |
| Finish Family | Gray |
| Flow Rate @ 35°F Rise (gallons/min) | 1.56 gal (US)/min |
| Flow Rate @ 45°F Rise (gallons/min) | 1.21 gal (US)/min |
| Flow Rate @ 55°F Rise (gallons/min) | 0.99 gal (US)/min |
| Flow Rate @ 65°F Rise (gallons/min) | 0.84 gal (US)/min |
| Maximum Temperature (F) | 140 °F |
| Minimum Activation Rate (gpm) | 0.25 |
| Minimum Temperature (F) | 80 °F |
| Number of Elements | 1 |
| Pack Size | 1 |
| Uniform Energy Factor | 0.97 |
| Water Heater Features | Wall Mounted |
| Certifications and Listings | CSA Listed,ETL Listed,UL Listed |
| Product Width (in.) | 8.25 in |
| Water Connection Size (in.) | 1/2 in NPT adapter included |
Reviews:
Easier to install than removing the old tank unit. My wife was skeptical at first that this would be as good or better than our old unit with the idea of "unlimited" hot water and it didn't disappoint… We have a small house but both showers and washer can run all at the same time..actionmaytag
This water heater is perfect for my little house, endless hot water. Was somewhat of a challenge to DIY install but I made it happen. This unit drinks lots of power. Be sure you have room in your panel. Shark Bite fittings with copper plumbing is essential, much faster. Would definitely buy this again.rdricker81
12. Rheem Performance 27 Kw Self-Modulating 5.3 Gpm Electric Tankless Water Heater
Product Details:
This water heater provides instant and continuous hot water for up to 4 showers and 1 faucet (based on geographic location). rheem performance tankless electric water heaters help reduce energy usage, save on energy costs, and are small so they will be a perfect match for installations under a cabinet or sink in your home, office, boat or rv.
Specifications:
| Required Volt Connection | 240 volt |
| Application Type | Residential |
| Indoor/Outdoor | Indoor |
| Fuel Type | Electric |
| Number of Showers | 1-2 |
| Amperage (amps) | 112.5 A |
| Electricity Phase | Single Phase |
| Finish Family | Gray |
| Flow Rate @ 35°F Rise (gallons/min) | 5.27 gal (US)/min |
| Flow Rate @ 45°F Rise (gallons/min) | 4.1 gal (US)/min |
| Flow Rate @ 55°F Rise (gallons/min) | 3.35 gal (US)/min |
| Flow Rate @ 65°F Rise (gallons/min) | 2.84 gal (US)/min |
| Maximum Temperature (F) | 140 °F |
| Minimum Activation Rate (gpm) | 0.25 |
| Minimum Temperature (F) | 80 °F |
| Number of Elements | 3 |
| Pack Size | 1 |
| Uniform Energy Factor | 0 |
| Water Heater Features | Wall Mounted |
| Certifications and Listings | CSA Listed,ETL Listed,UL Listed |
| Product Width (in.) | 21.625 in |
| Water Connection Size (in.) | 3/4 in NPT |
Reviews:
Easier to install than removing the old tank unit. My wife was skeptical at first that this would be as good or better than our old unit with the idea of "unlimited" hot water and it didn't disappoint… We have a small house but both showers and washer can run all at the same time..actionmaytag
This water heater is perfect for my little house, endless hot water. Was somewhat of a challenge to DIY install but I made it happen. This unit drinks lots of power. Be sure you have room in your panel. Shark Bite fittings with copper plumbing is essential, much faster. Would definitely buy this again.rdricker81
13. Airthereal Electric Tankless Water Heater 18kw, 240volts – Endless On-Demand Hot Water – Self Modulates To Save Energy Use – Small Enough To Install
Product Details:
Specifications:
| Capacity | 240 Gallons |
| Power Source | AC |
| Item Dimensions LxWxH | 17.25 x 12.22 x 3.43 inches |
| Voltage | 240 Volts |
| Style | Indoor Installation |
| Mounting Type | Wall |
| Product Dimensions | 17.25 x 12.22 x 3.43 inches |
| Country of Origin | China |
| Installation Method | Wall-Mounted |
| Included Components | Electric Tankless Water Heater 18kW |
Reviews:
pThis 9 kW unit was a warranty replacement for the first unit I installed. The issue with the first unit was that it showed a constant error code of "EF", which should mean the flow sensor isn't working. The circuit card logic was programmed incorrectly, however, which caused this error code to display even though there was not an issue with the flow sensor. Installation was easy. I tested the replacement unit to get some numbers on water temperature rise versus flow rate. It is February in southern Indiana and the water inlet temperature is 47 deg F. I was able to 108 deg F output water temperature at 2 GPM, and up to 131 deg F (unit maximum) at 1.5 GPM. The unit starts working with about 0.5 GPM flow./pS H.
pAirtherial Tankless water heaters have the design, look, feel and function of a well-engineered product. The matte black case and contrasting LCD display transforms a usually boring appliance into a nice "Wall Piece". However, after installation, I contacted the seller to resolve a fundamental hot/cold water issue, and found the representatives of Sain Store to be truly an example of excellence in customer service. The company reps (whom I contacted via phone and email) went far above and beyond my expectations to assist with resolving my issue and identifying the root cause. Ultimately, the problems experienced proved to be resultant of installer error, not an error with their product. I wholeheartedly recommend Airthereal Water heaters for their product quality & the manufacturer's post-sale customer service./pNWShopper007
I bought this water heater because my old tank heater went out. We had one of the big tank ones but it was like 25 years old. Anywho, installation was a tad difficult, but customer service is there for you! Now thats its all hooked up we have hot showers again!! Hot throughout the entire shower and my husband got in right after me and said the same thing!! Works good for the kitchen sink to! I live in Tn.Paula M.
14. Titan Electric Tankless Water Heater N-160
Product Details:
Product type: tankless water heater csa listed: yes voltage: 240 volt wall mountable: yes power source: electric amperage: 66 amps warranty: 1 year maximum pressure: 150 psi water connection size: 1/2 in. maximum temperature: 65 deg. f self cleaning: no assembled width: 7 in. energy star compliant: yes water connection location: side assembled length: 3 in. element wattage: 240 watts assembled height: 12 in. commercial or residential: residential or commercial temperature pressure relief valve: yes by heating water only when necessary the titan n-160 tankless water heater saves money and energy minimum temperature: 55 deg. f space saving heaters are so efficient that they only use a little over one third of the energy of a conventional tank water heater saving you up to an astounding 60% on your electrical cost to heat water element wattage: 240 watt watts: 16 tankless: yes width: 7 depth: 3 volts: 240 amps: 66 height: 12 csa listed: no.
Specifications:
| Power Source | Electric |
| Energy Star Certified | Yes |
| Minimum Temperature | 55 °F |
| Height | 12" |
| Commercial or Residential | Residential or Commercial |
| Water Connection Location | Side |
| Width | 7" |
| Watts | 16 W |
| Maximum Temperature | 65 °F |
| Volts | 240 V |
| Maximum Pressure | 150 psi |
| Water Connection Size | 1/2" |
| Depth | 3" |
| Product Type | Tankless Water Heater |
| Tankless | Yes |
| AMPS | 66 amps |
| Warranty | 1 Yr |
| CSA Listed | No |
| Each Weight | 9.000 LB |
| Velocity | C |
| Hazardous Material | No |
Reviews:
200 amp service. This thing pulling 66 amps . Heat pump pulling 90 amps . If wife cooks, cleans and drys cloths, I think it wont work. Lights dim now with heat pump on and water heater on. Just my thoughts . So now I have it sitting on a shelf collecting dust. But I really cant blame titan. I should have done more than an hour of home work before ordering.metalpayed
15. Ecosmart Eco24 24 Kw 240v Electric Tankless Water Heater
Product Details:
Ecosmart eco 24 is a 24-kilowatt tankless electric water heater ideal for providing hot water for apartments, condominiums, townhomes and other whole home applications. it can provide between 2.4 and 5.8 gallons-per-minute depending on the inlet water temperature. to select the best solution for your hot water needs, please refer to the sizing guide. with ecosmart you will be happier knowing the warm water you expect is available endlessly, consistently, and on-demand, allowing you to reduce your water and energy waste. now that feels warm all over! ecosmart – sharing the warmth.
Specifications:
| Required Volt Connection | 240 volt |
| Application Type | Residential |
| Indoor/Outdoor | Indoor |
| Fuel Type | Electric |
| Number of Showers | 1-2 |
| Amperage (amps) | 100 A |
| Electricity Phase | Single Phase |
| Finish Family | White |
| Flow Rate @ 35°F Rise (gallons/min) | 4.68 gal (US)/min |
| Flow Rate @ 45°F Rise (gallons/min) | 3.64 gal (US)/min |
| Flow Rate @ 55°F Rise (gallons/min) | 2.98 gal (US)/min |
| Flow Rate @ 65°F Rise (gallons/min) | 2.52 gal (US)/min |
| Maximum Temperature (F) | 140 °F |
| Minimum Activation Rate (gpm) | 0.25 |
| Minimum Temperature (F) | 80 °F |
| Number of Elements | 3 |
| Pack Size | 1 |
| Uniform Energy Factor | 0 |
| Water Heater Features | Wall Mounted |
| Certifications and Listings | CSA Listed,ETL Listed,UL Listed |
| Product Width (in.) | 17 in |
| Water Connection Size (in.) | 3/4 in NPT |
Reviews:
I got tired of running out of hot water after one person took a shower. Decided to go for a tankless because of the unlimited hot water, space saving, and electric bill savings. I can tell you that I am not disappointed! After installation my two kids and wife took long baths before I got in to the shower. The water was extremely hot and I only had the hot water faucet turned up half way (mind you, I do NOT have the tankless set to its highest temp. setting). It was recently installed so I haven't been able to tell how it has impacted my electric bill. Cons: With the unit itself, no complaints. However, to install the unit you need to make sure that you can supply it with the power it needs (three 40 amp, double pull breakers). Before purchasing make sure that you have enough room in your electrical panel to accommodate all of the breakers. I ended up installing everything myself because I received quotes from electricians in my area (Miami, FL) for around $1,500 – $2,000 to do the work (electrical only) in my townhouse. They said if it were a single family house the job would be a lot cheaper, so take that into consideration.saavedra33160
I have two of them. Works really wellram1000
Wonderful product. With being in a Southern climate this unit is more than adequate for a 3 bedroom 2 bath home. Wife a I can both take showers at the same time with no issues. Unit is simple to install and operate. With settings up to 140 degrees have it set at 115 and more than hot water. The compact size is fantastic.baldwijj3
16. Stiebel Eltron Tempra 24 Trend Whole House Electric Tankless Water Heater
Product Details:
The tempra 24 trend is capable of providing consistently hot water to several fixtures at once while reducing energy usage. 240/208v – 24 kw copper tankless electric w. digital thermostat tempra trend models feature a memory preset that makes it easy to return to your ideal water temperature at the push of a button. with the tempra trend, you’ll enjoy endless hot water, unrivaled efficiency, and the utmost in comfort. a stiebel eltron tempra responds directly to your demand for hot water without interruption. showers will always be hot, even if there are several taken in a row and they run long. every tempra has self-modulation. self-modulation ensures that only the least amount of energy is used at all times.
Specifications:
| Item – Water Heaters | Electric Tankless Water Heater |
| Water Heater Design | Whole House |
| Water Heater Application | General Purpose |
| Commercial / Residential | Both |
| Watts – Water Heaters | 24,000 |
| Amps – Water Heaters | 100 |
| Voltage – Water Heaters | 208/240 |
| Min. Flow Activation | 0.50 gpm |
| Phase – Water Heaters | 1 |
| Temp. Range – Water Heaters | 70 Degrees to 140 Degrees F |
| Max. Flow Rate | 1 gpm |
| Water Connection | 3/4" NPT |
| Mounting | Any Direction |
| Temp. Rise @ 0.5 GPM | 92 Degrees F |
| Elements | Copper Sheathed Housed in Cylinder |
| Default Temperature | 140 Degrees F |
| Temp. Rise @ 2.5 GPM – Water Heaters | 65.6 Degrees F |
| Standards | ETL Listed, WQA |
| Temp. Rise @ 1.5 GPM | 92 Degrees F |
| Wire Size | 6/2 AWG |
| Pressure Range | 30 to 150 psi |
| Temp. Rise @ 6.0 GPM | 27 Degrees F |
| NEMA Rating | 1 |
| Mounting Orientation | Horizontal, Vertical |
| Element Material | Copper |
| Cold Inlet Size | 3/4 in |
| Temperature Range | 70 Degrees F to 140 Degrees F |
| Operating Voltage | 208/240V AC |
| Mounting Type | Wall Mounting |
| Overall Dimensions – H x W x D | 14.5 in x 16.63 in x 4.63 in |
| Cord Conductor Gauge | 8/2 AWG Wire |
| Market | Commercial, Residential |
| Minimum Water Pressure | 30 psi |
| Current | 44 A, 50 A |
| Adjustable Thermostat | Yes |
| Environment | Indoor |
| Maximum Flow Rate | 1 gpm |
| Maximum Water Pressure | 150 psi |
| Minimum Flow Activation | 0.5 gpm |
| Power Consumption | 24,000 W |
| Country of Origin (subject to change) | Germany |
Reviews:
A year ago we purchased a new home. I asked the contractor to install a tankless water heater. He installed an electric A O Smith tank unit instead and claimed that he researched tankless units and that they could not keep up with the volume of hot water our three person family would need. We live in a community that provides treated well water. After a year our hot water smelled strongly of sulfer. We were told that the diode in our tank would have to be changed either with a very expensive diode or with the standard one but done annually. Unfortunately A O Smith installs the diode's with a robot or a person that is determined that it would never come out. Removal attempts turned the bolt into a perfectly round piece. It is sunk 6" into the tank which prevents use of a pipe wrench. A new water heater was required or we had to live with the smell. I did my own research and determined that this 2400w tankless unit should provide all of the hot water our family would ever need. I purchased it from Zoro on a Friday and it was on our porch on Sunday when we got home from church. I spent the day replacing the unit. The tankless works great. We are very pleased with it. We have a large tub in our master bath that would only fill half way before the water in the 40 gallon tank model turned cold. The tankless unit stays hot until you turn it off.j The bonus is this takes up only a fraction of the room that the old unit required.Guest
Although this seems like the way to go, I ordered this figuring it would be perfect for the Basement suite that I'm putting in. Ordered it, my contractor took a look at it and informed me that most serviced residential homes do not have enough amps going to them to be able to run this as well as everything else in your home, for a commercial lot it would be fine. That the service to the home would need to be upgraded, which is an even bigger expense. So beware as to whether you're able to use this.frustrated renos
I self installed the unit a week ago. Since my existing electrical panel only had room for one double pole breaker I had to install a 100 amp breaker and run to a sub panel for the two 50 amp breakers required for the unit. I was able to mount the sub panel and the water heater on the wall in the space formerly occupied by the tank heater. I also installed a sediment filter on the input side of the heater. The installation went smoothly and was completed in less than a day. So far the unit is supplying plenty of hot water for my wife and I. We are able to take long, hot showers with no drop in water temperature or water pressure. It can also handle the dish washer and the washing machine, but not at the same time. The unit is well constructed and the installation instructions are good. Total cost of the unit, sub panel, breakers and other fittings came out to less than $800. All and all we are very satisfied and would recommend this unit for any household with similar requirements: 2 people, dish washer and laundry. Three or more people may require a larger unit.
17. Black & Decker 27 Kw 5.3 Gpm Electric Tankless Water Heater
Product Details:
Unlike conventional tank water heaters, which constantly consume energy to keep your water hot 24/7, this state-of-the-art, digital technology will instantly reduce your energy consumption and save you money on energy costs simply by heating water on demand. the unit does not require any gas lines or venting, and the compact design allows you flexibility to install virtually anywhere – in a cabinet, closet, garage, basement, etc. you can be sure to earn some precious space by installing this unit! (important: inlet temps vary by location and seasonality. selecting the right water heater depends on your incoming water temperature, flow rate, and desired output temperature.
Specifications:
| Voltage (Volts) | 240 |
| Bluetooth Compatibility | No |
| Amps Required for Unit Only (Amps) | 112.5 |
| Smart Compatible | No |
| Width (Inches) | 4.53 |
| Point of Use | No |
| Maximum Gallons per Minute | 5.8 |
| Wire Size (Gauge) | 8 |
| Major Appliances Supplied Simultaneously | 5 |
| Wi-Fi Compatibility | No |
| Weight (lbs.) | 15 |
| Hybrid Heat Pump Technology | No |
| Mobile Home Compatible | Yes |
| Commercial/Residential | Commercial/Residential |
| Depth (Inches) | 17.13 |
| Installation Location | Wall mount |
| Height (Inches) | 14.76 |
| Household Amperage Required (Amps) | 120 |
| Power Output (Kilowatts) | 27 |
Reviews:
This heats the water great in the summer time, a little cooler in the winter time when the ground is cooler. Make sure you measure the distance from you furthest shower to you water hear location before purchasing, to ensure that your water heater will heat the water efficiently.Anonymous
18. Bosch Wh17 Tankless Water Heater – Electric
Product Details:
17.3 kw tankless whole house electric water heater provides endless hot water for 1-2 applications at a time. polymer encased elements and built-in flow sensor ensures constant output temperature. compact and lightweight – can be installed virtually anywhere for commercial or residential applications. 97 thermal efficiency with minimal stand-by loss – no waiting for cold water to heat up. external temperature control knob improved temperature stability and control. an integrated filter screen on the heater inlet ensures pure particle-free water. patented scale prevention technology eliminates hot-spots and corrosion for more efficient long-lasting use. designed to comparably replace a traditional tank heater of up to 40 gallons. heater measures 12. 5-in h x 15. 25-in l x 4. 5-in d and weighs just 20 lb.
Specifications:
| Power Source | Electric |
| Product Type | Tankless Water Heater |
| Commercial or Residential | Residential or Commercial |
| Amperage | 80 are |
| Assembled Width | 8-1/2 in. |
| Maximum Pressure | 150 psi |
| Voltage | 220 volt |
| Warranty | 5 year |
| Assembled Length | 18-1/2 in. |
| Assembled Height | 17-1/2 in. |
| Brand Name | Bosch |
Reviews:
Like the ability to display the flow rate. Would be nice to have an external switch to do so. Screws for holding front cover on are not easy to insert. Optional holes on the sides would be appreciated. Instructions should identify nut driver size needed for ground connection.Ralph M
Replacement for an older unit that was 16 years old. Essentially an upgraded model of the older one. Installation was quick, 2 hours, fit exactly in the same space as the previous one. However, so far this one needed 2 expensive re-visits from the plumber after it was installed to get the hot water running in various faucets w/o waiting literally 4-5 minutes each time. Was told by Bosch that it shouldn't need any adjustments.Bob
19. Stiebel Eltron Electric Tankless Water Heater Mini 2
Product Details:
This particular model operates using 1.8 kw. with 90 years of german engineering and manufacturing experience you can count on this product to be reliable. the mini 2-1 heats water instantaneously as it flows through this point-of-use device. it is 99% efficient and allows for no stand-by energy loss. a sleek design, without the need for venting, makes it possible for installation anywhere. this tankless electric water heater comes complete with a high-limit pressure cutout and manual reset to give you peace of mind and optimal safety. a 0.5 gpm aerator is included with this mini 2-1 and is suggested to be installed. the mini 2-1 excels at supplying you with a flow of water at a constant temperature rise when installed properly. requiring only a 120 v electrical connection to operate making it easier for you to use.
Specifications:
| Item – Water Heaters | Electric Tankless Water Heater |
| Water Heater Design | Point-of-Use |
| Water Heater Application | Undersink |
| Commercial / Residential | Commercial |
| Watts – Water Heaters | 1800 |
| Amps – Water Heaters | 16 |
| Voltage – Water Heaters | 120 |
| Min. Flow Activation | 0.21 gpm |
| Phase – Water Heaters | 1 |
| Temp. Range – Water Heaters | 82 Degrees to 130 Degrees F |
| Temp. Rise @ 2.5 GPM – Water Heaters | 5 Degrees F |
| Elements | Bare Wire Nickel Chrome |
| Temp. Rise @ 8.0 GPM | 2 Degrees F |
| Wire Size | 12 AWG |
| Phase | 1 |
| Temp. Rise @ 1.5 GPM | 8 Degrees F |
| Temp. Rise @ 0.5 GPM | 25 Degrees F |
| Water Connection | 3/8" Compression |
| Temp. Rise @ 4.0 GPM | 3 Degrees F |
| Mounting | Vertical |
| Residential / Commercial | Commercial |
| Pressure Range | 150 psi |
| Amps AC | 16 |
| Temp. Rise @ 6.0 GPM | 2 Degrees F |
| Watts | 1800 |
| Voltage | 120VAC |
| Temp. Rise @ 2.5 GPM | 5 Degrees F |
| Temp. Range | 82 Degrees to 130 Degrees F |
| Minimum Flow Activation | 0.21 gpm |
| Hot Outlet Size | 3/8 in |
| Element Material | Nichrome |
| Cord Conductor Gauge | 14/2 AWG Wire |
| Overall Dimensions – H x W x D | 6.5 in x 7.5 in x 3.25 in |
| Environment | Indoor |
| Cold Inlet Type | Compression |
| Current | 15 A |
| Minimum Water Pressure | 30 psi |
| Temperature Range | 86 Degrees F to 122 Degrees F |
| Maximum Flow Rate | 0.35 gpm |
| Mounting Type | Wall Mounting |
| Power Consumption | 1,800 W |
| Maximum Water Pressure | 150 psi |
| Energy Factor | 0.98 |
| Adjustable Thermostat | No |
| Application | Bathrooms, Break Rooms, Utility Sinks |
| Hot Outlet Type | Compression |
| Market | Commercial, Residential |
| Cold Inlet Size | 3/8 in |
| Mounting Orientation | Vertical |
| Operating Voltage | 120V AC |
| Country of Origin (subject to change) | Germany |
Reviews:
Seems I waste gallons of water waiting for it to get hot so I put one under the kitchen sink and it works good. Well enough that I bought another for the bathroom. Nice compact unit and easy to install. Insure you have access to electric outlet. Under the kitchen sink I have an outlet for dishwasher and disposal so wired a plug to the unit and just pluged it in. Bathroom required more effort to get electric for unit.Greg
I installed this unit in my guest bathroom where getting hot water was an interminable wait, which wasted water as well. It was relatively easy to install and hook up, though working under the sink is a pain! I had to have an electrician run an outlet circuit first. The rest of my house is on a tankless heater, so this just runs downstream. Simple solution to an age old problem.CorraldT
Product performs as expected. Don't expect very hot water with 1800W. Two minor things: it's hard to install in a small under sink cabinet due to the side attachment screws; the instructions say you need to install a flow restrictor, the aerator/restrictor did not fit for my sink and l spent some time trying to find one. It turns out the unit restricts the flow by itself.Michael
20. Marey 2.0 Gpm Electric Tankless Water Heater Power Pak – 220-Volt
Product Details:
Marey the tankless electric water heater combines the compact size to be installed almost anywhere with the power to provide endless hot water to a whole house. it builds at high-quality standards to lasts many years. it is the only water heater in the market that has the ability to be wired to a 10 amp, 20 amp, 30 amp, or 40 amp breaker. (by wiring the unit to a smaller breaker you are limited to the power setting you can use). the powerpack is a versatile and reliable tankless water heater that can be used either as a point of use or to supply unlimited hot water to a whole apartment or small house. it is also called a water heater on demand, because it heats water only when needed, saving energy. it is designed in the usa and it's perfect to supply endless hot water for up to 1-2 points of use simultaneously, this greatly depends on your incoming water temperature and flow rate. (for a variety of residential hot-water applications). its compact design saves space and is easy to install. it is ideal for a 1-2 bathroom house in a tropical climate. for regions with a cooler incoming temperature as found in most of the continental u.s., this would be more suited for a single point of use to achieve optimal performance. the amount of temperature increase will vary on the power setting and the flow rate of water going through the unit.
Reviews:
Easy to install works great for my two bedroom condo in Florida.Gary G.
Have it within 10 feet of shower and sink; just turn the shower on just enough to activate the shower head….whether you get 30 seconds of heat, then cold, or even temp throughout shower is a crap shoot. Constantly adjusting it to try and get a stable heat flow; very hard to do.spyderwebb2d6y
