Best Electric Tankless Water Heater For Large Homes (2024 Update)
Choosing the best electric tankless water heater for your large home can seem like a daunting task. With so many factors to consider, it’s important to do your research to find the right model for your needs and budget.
When shopping for a tankless electric water heater, you’ll want to look at the unit’s flow rate, power requirements, and energy efficiency. Flow rate, measured in gallons per minute (GPM), determines how much hot water the heater can produce at one time. For a large home with multiple bathrooms, you’ll want a high flow rate to support simultaneous use. Make sure to consider your home’s electrical system too – some tankless models require 50 amps or higher. The more energy efficient the unit, the more you’ll save on electricity costs in the long run.
You’ll also want to think about ease of installation and maintenance. Tankless heaters are more complex than traditional water heaters. Consider whether you’re able to install it yourself or will need to hire a professional. How often will maintenance be required? What’s the warranty coverage? Taking the time to weigh these key factors will lead you to the ideal electric tankless water heater for your large home.
10 Best Electric Tankless Water Heater For Large Homes
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This product is ideal for providing hot water in residential settings.
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Ideal for providing hot water on demand in a cost and energy-efficient manner for homes and businesses.
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It is ideal for providing hot water at a specific location, such as a kitchen or bathroom sink.
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Ideal for providing hot water to a moderate-sized household with up to 6 simultaneous water applications.
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It is ideal for providing hot water quickly and efficiently, with energy-saving technology and a compact design.
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The product is ideal for providing hot water to an entire home, with digital temperature control and high flow rate.
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It's ideal for providing hot water efficiently and on-demand in residential and commercial settings.
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Ideal for providing constant temperature hot water on demand in a home kitchen or indoor setting.
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This product is ideal for providing hot water on demand, saving space and energy compared to traditional tank water heaters.
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The product is ideal for providing hot water on demand for residential or commercial use.
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1. Rheem 240v Heating Chamber Rtex-13 Residential Tankless Water Heater, Gray
This product boasts an external adjustable digital thermostatic control that ensures accuracy within +/-1 degree. The LED display shows the current temperature, allowing for easy monitoring and control. With durable copper immersion and two heating elements, this product is field serviceable and self-modulating, ensuring a longer lifespan and improved performance.
Installation is a breeze with the included 1/2 NPT adapters and side 1/2 inch compression water connections. The product's impressive 99.8% energy efficiency ensures you get the most out of your energy usage while keeping your costs low.
The external controls allow for easy temperature adjustment in increments of 1°F, ensuring you get the perfect temperature every time. Additionally, the product comes with a water-saver shower head that only uses 1.5 gallons per minute, helping you save on your water bill.
This product is designed with threaded connections for easy replacement and installation, and the digital temperature display makes it easy to keep track of the water temperature. The 13kW model has a flow rate of up to 3.17 gallons per minute, providing ample water flow for all your needs.
Investing in this product means investing in a reliable and efficient water heating solution that will provide consistently comfortable water temperatures while saving you money on energy and water bills.
2. Ecoplus Hot Water Heater: Stiebel Eltron Tempra 24
Introducing the Tempra 24 Plus, a cutting-edge electric tankless water heater that utilizes advanced Flow Control patented technology to automatically maintain water temperature for constant comfort. Invented by Stiebel Eltron, this technology ensures that hot showers will never be interrupted again. If hot water demand exceeds capacity, the unit will reduce flow slightly to maintain a consistent temperature.
Designed with space and energy savings in mind, the Tempra 24 Plus features a small, sleek white design that saves space in your home without sacrificing performance. No venting is required, making installation a breeze. This eco-friendly unit saves energy with auto-modulation and the ability to electronically control water flow. A savings monitor even shows how much you save on energy costs.
Operating the Tempra 24 Plus is easy with an electronic switch that activates the hot water heater and a noise-free operation. The digital temperature display and preset temperature and memory buttons make it easy to set and maintain the perfect water temperature. The interior solid copper heating system does all the power work, ensuring reliable and efficient performance.
This specific model is 24kW, 240V, and requires a minimum recommended electric service of 150 A. It offers an impressive output water temperature range of 68° to 140°F. Check our guides below to compare features of our various Trend and Plus models, each available in different kW levels. Tempra Plus tankless water heaters can be set to limit the maximum hot water temperature to 109°F, an important safety feature in some installations to prevent scalding.
Stiebel Eltron's top-rated electric tankless water heaters deliver the highest standards for comfort and reliability. With the purchase of the Tempra 24 Plus, you'll receive a 7-Year Leakage Warranty and a 3-Year Parts Warranty, providing peace of mind and protection for your investment. Choose the Tempra 24 Plus and enjoy endless hot water and energy savings in your home or business.
3. Ecotouch Electric Tankless Water Heater: Instant Hot!
Looking for an instant and sufficient supply of hot water? Look no further than this electric water heater. With a 5.5KW heating system, this tankless water heater can supply consistent and endless hot water of 116℉ or higher in no time at all. Say goodbye to lukewarm water and hello to the perfect companion for sinks.
What sets this water heater apart is its smart self-adjustment feature, which adjusts power input based on flow rate and temperature settings in real time. This means that even if water flow is reduced, you can still expect to receive ideal temperature without the risk of scalding hot water. With optimal energy efficiency of 98%, you'll also enjoy considerable electric charge savings.
Convenience is key with this tankless water heater. It comes with a digital display and touch control panel for easy temperature setting. Simply turn on the tap and let the smart unit do the rest. No more guesswork with temperature settings, as this model comes with remote control for the Black version to make installation under sink a breeze.
Safety and durability are top priorities with this water heater. It is applied with multiple protection devices and undergoes strict tests to ensure 100% safety. Inner water and electricity lines are designed to run separately to avoid leakage or harm of scale build up. Plus, it is ETL-approved and qualifies for UL, guaranteeing outstanding performance for years to come.
The sleek and compact design of this tankless water heater makes it possible to install anywhere close to an outlet, avoiding energy waste. It can be mounted horizontally, vertically or obliquely, making it ideal for use in kitchens, bars, schools, hospitals, communities and hair salons. Please note that it has dimensions of 11" x 7.5" x 2.35" and pipe fittings of 1/2" NPT, so be sure to verify that it is the right size for your needs.
4. Atmor Tankless Water Heater: Endless Hot Water For Homes
Looking for a hot water heater that can provide you with continuous hot water without the need for a hot water tank? Look no further than this tankless hot water heater. With its powerful 3 x 40 Amp DP breakers, 3 x 8/2 AWG wires with ground, and 240V power supply, this hot water heater delivers reliable and consistent hot water whenever you need it.
One of the biggest benefits of this tankless hot water heater is that it can save you up to 50% on water heating costs compared to a traditional tank water heater. This makes it a great choice for both commercial and residential use, whether you're looking to save money on your monthly energy bills or simply want a more efficient way to heat your water.
In addition to its impressive cost savings, this tankless hot water heater also comes with a superior warranty. You'll receive a 2-year limited parts-only warranty, as well as a 7-year warranty free from any leakage issues. This gives you peace of mind knowing that your hot water heater is covered in the event of any unexpected issues.
5. Ecosmart's Self-Modulating 24 Kw Tankless Water Heater
The ECOSMART electric tankless water heater is a reliable and cost-effective option for those looking to save money on their water heating expenses. With a lifetime warranty, customers can trust in the longevity and durability of this product.
One of the most significant advantages of the ECOSMART tankless water heater is its ability to save up to 60-percent on water heating costs. This is due to its 99.8-percent energy efficiency rating, making it an eco-friendly and practical solution for homeowners.
The patented Self Modulating Technology and design of this water heater ensure that it only uses energy when necessary, further contributing to its energy-efficient qualities. With an activation flow of only 0.3 GPM, this tankless water heater is designed to never run out of hot water, providing an endless supply of hot water for all of your household needs.
The ECOSMART electric tankless water heater features a 100 A capacity, making it perfect for both residential and commercial use. Its compact design allows for easy installation and use, making it an ideal solution for those looking for a convenient and space-saving option.
6. Ge Diamond Gray Tankless Water Heater – 24kw
Looking for an efficient and reliable water heating solution for your home or apartment? Look no further than this tankless electric water heater!
This innovative unit provides unlimited hot water on demand, ensuring you never run out of hot water during those busy mornings or relaxing evenings. With a performance capacity of up to 5.3 gallons per minute (GPM), it can easily handle the demands of a whole house or apartment, running up to 4 faucets and 2 showers simultaneously in warm climates.
Featuring an intuitive interface and space-saving design, this tankless electric water heater is easy to use and compact enough to fit in any home. Simply adjust the temperature and settings with the easy-to-use touch screen, and enjoy the space-saving benefits of a unit that takes up significantly less space than a traditional tank-style water heater.
And with its energy-efficient design, this tankless electric water heater conserves both energy and water by only using energy when hot water is in use, helping you save money on your utility bills.
So why wait? Upgrade your water heating solution today with this reliable and efficient tankless electric water heater!
7. Eemax Ha036240 240v 36 Kw Electric Tankless Water Heater
The Eemax hot water heater is the perfect solution for those who need an endless supply of hot water. This innovative brand offers high-quality products, and the HA036240 model is no exception. Made in the United States, this model is designed to meet the needs of any household.
One of the most significant advantages of the Eemax hot water heater is its endless supply of hot water. With this model, you will never run out of hot water, no matter how many people are using it. This feature makes it ideal for large families or households with high hot water demands.
The Eemax HA036240 model has an impressive specification and is built to last. The unit is designed with a high-quality heating element that provides up to 3.6 kW of power, ensuring that the water is heated quickly and efficiently. Additionally, the heater has a compact design, making it easy to install and use in any space.
The Eemax HA036240 hot water heater is also incredibly energy-efficient. Its advanced technology ensures that the heater only uses the energy needed to heat the water, which can lead to significant savings on your energy bills. Furthermore, the heater is built with high-quality materials, ensuring that it will last for many years.
In terms of safety, the Eemax HA036240 model is equipped with several features to ensure that it operates safely. It has an automatic shut-off feature that turns off the heater if it gets too hot or if there is a problem with the unit. Additionally, the heater has a built-in pressure relief valve that prevents any damage to the unit.
8. Kenuos Tankless Water Heater: Hot Water Anytime!
The electric tankless water heater is a game-changer in the world of hot water heaters. With a 7500W heating system, it supplies instant hot water, taking only 3 seconds to heat up without any preheating. Experience endless hot water at a maximum temperature of 55℃/131℉, making it the perfect companion for sinks and providing you with a comfortable and relaxing experience.
The heater boasts an ultra-slim and smooth appearance design, adding elegance and beauty to your decor. The temperature can be adjusted through the remote control or touch control feature, providing you with convenience and safety by avoiding wet hands. The constant temperature water outlet has three-level power adjustments, ensuring you never have to deal with cold or hot water.
In addition to convenience, this tankless hot water heater is also environmentally friendly and energy efficient. Its compact design, about the size of a small suitcase, frees up valuable floor space within your home. It is also 99% thermal energy efficient, only heating water when called upon, unlike tank heaters that maintain water temperature even when not in use.
Installation of this home water heater is a breeze, with its mini body making it easy to install in the bathroom, kitchen, or under the sink. The standard 1/2 interface (inflow or outflow) can be directly connected to household conventional hose connectors. However, it is important to note that the power of this water heater is high, with a rated current of about 40 amps. The maximum load of a general home plug socket only provides 16 amps (3000W), which cannot handle the power consumption of the water heater. Therefore, it is not equipped with a plug, and a control line must be used to access the connector that is greater than or equal to 40 amps contacts as the main gate to provide sufficient power and ensure safety.
In terms of safety, this water heater is equipped with high-temperature protection, dry heating protection, and electrical leakage protection, ensuring that you have safe, on-demand hot water to use on your schedule. The electric and fluid systems are completely separated to prevent electric leakage and water pipe corrosion.
9. Eemax Eem24027 Electric Tankless Water Heater, Blue
Looking for a reliable and energy-efficient water heater? Look no further than this tankless water heater! This innovative appliance provides a continuous supply of hot water, so you'll never run out during your shower or bath. Plus, it only heats the water you need, when you need it, so you won't waste energy or money on heating water you're not using.
This tankless water heater requires 3 x 40 AMP double pole breakers, and the wire gauge required is 3 X 8 AWG. With these parameters, you can be sure that your water heater is properly installed and safe to use.
One of the best things about this tankless water heater is its compact size. It's designed to save valuable storage space, so you can enjoy all the benefits of hot water without sacrificing square footage in your home.
In addition to its practical features, this tankless water heater is also built to last. It's made with high-quality materials and designed to withstand years of use, so you can enjoy hot showers and baths for years to come.
10. Rheem Rtex-24 24kw 240v Electric Tankless Water Heater, Gray
The product features an ON/OFF Dial Control with an adjustable digital temperature display, allowing for easy and precise temperature adjustments. The self-modulating power control ensures efficient energy usage and cost savings. With a 24kW model and a flow rate of up to 5.9 GPM for RTEX-24, this product ensures a constant and steady supply of hot water on demand. The bottom 3/4" NPT water connections provide easy installation and compatibility with most plumbing systems. Enjoy consistent and continuous hot water with this reliable and efficient product.
Best Electric Tankless Water Heater For Large Homes FAQs
Are there any tax incentives or rebates available for purchasing an electric tankless water heater for a large home?
Yes, there are tax incentives and rebates available for purchasing an electric tankless water heater for a large home. The federal government offers a tax credit of up to 30% of the cost of the unit, up to a maximum of $1,500, for residential energy efficiency improvements, including the installation of a tankless water heater. Additionally, many states and local utilities offer rebates and incentives for installing energy-efficient appliances, including tankless water heaters. These incentives can vary by location and utility provider, so it is recommended to check with your local government or utility company to see what options are available in your area. Installing a tankless water heater can also lead to long-term savings on energy costs, as they are more efficient and use less energy than traditional tank water heaters. Overall, purchasing an electric tankless water heater for a large home can be a financially beneficial decision with the added bonus of reducing your carbon footprint.
Can an electric tankless water heater provide hot water for multiple bathrooms simultaneously?
Yes, an electric tankless water heater can provide hot water for multiple bathrooms simultaneously. However, the capacity of the heater should be sufficient to meet the hot water demand of all the bathrooms. Generally, a larger unit with a higher flow rate is required for multiple bathrooms. It is recommended to calculate the hot water demand of all the fixtures and appliances in the bathrooms and choose a tankless water heater accordingly.
Moreover, the location of the water heater installation also plays a crucial role in providing hot water to multiple bathrooms. The heater should be installed as close to the point of use as possible to reduce the time taken for hot water to reach the fixtures. Proper sizing and installation of the tankless water heater can ensure that there is enough hot water supply for all the bathrooms simultaneously, providing convenience and comfort to the occupants.
How does the efficiency of an electric tankless water heater compare to a traditional tank water heater for a large home?
When it comes to the efficiency of an electric tankless water heater versus a traditional tank water heater for a large home, there are a few factors to consider.
Firstly, electric tankless water heaters are generally more energy-efficient than traditional tank water heaters. This is because they don't have to constantly keep a large tank of water heated, which can lead to standby heat loss. Instead, electric tankless water heaters only heat water on demand, which can save energy and ultimately reduce your utility bills.
However, for a large home with high hot water demands, a traditional tank water heater may be more practical. This is because electric tankless water heaters typically have a lower flow rate than traditional tank water heaters, meaning they may not be able to keep up with the hot water demands of a large household.
Ultimately, the choice between an electric tankless water heater and a traditional tank water heater will depend on your household's specific hot water needs and preferences. It's always a good idea to consult with a professional plumber or HVAC technician to determine which option is best for your home.
How many gallons per minute (GPM) can a large electric tankless water heater handle?
The GPM capacity of a large electric tankless water heater depends on several factors such as the unit's power output, incoming water temperature, and desired output temperature. Generally, a large electric tankless water heater can handle a flow rate of 8-11 GPM. However, this can vary depending on the specific model and brand. It's important to note that a larger GPM capacity doesn't always mean better performance. It's crucial to choose a tankless water heater that can meet your household's hot water demands without sacrificing efficiency. It's recommended to consult with a professional plumber or a manufacturer's representative to determine the appropriate size and capacity of a tankless water heater for your home.
How much power does a large electric tankless water heater consume?
A large electric tankless water heater typically consumes between 11 to 13 kilowatts (kW) of power. However, the exact power consumption can vary depending on the size and model of the water heater, as well as the temperature of the incoming water and the desired output temperature. It's important to note that electric tankless water heaters require a significant amount of power to heat water on demand, so it's essential to have an adequate electrical supply and wiring installed to support the unit. Additionally, it's important to consider the overall energy efficiency of the water heater, as higher efficiency models may consume less power while still providing ample hot water. Ultimately, it's best to consult the manufacturer's specifications and consult with a licensed electrician to ensure proper installation and operation of your electric tankless water heater.
What are the top electric tankless water heater brands for large homes?
There are several top electric tankless water heater brands available in the market for large homes. The first brand that comes to mind is Rinnai. Rinnai is a well-known brand that offers a wide range of electric tankless water heaters for large homes. Their products are known for their durability, efficiency, and long service life.
Another popular brand is Stiebel Eltron. They offer a range of electric tankless water heaters that are designed for large homes. Their products are known for their energy efficiency and low maintenance costs.
Ecosmart is another brand that is gaining popularity in the market. Their electric tankless water heaters are designed to provide hot water on demand for large homes. Their products are known for their energy efficiency and low operating costs.
Lastly, Rheem is another well-known brand that offers a wide range of electric tankless water heaters for large homes. Their products are known for their durability, efficiency, and long service life. They are also known for their excellent customer service and support.
Overall, when choosing an electric tankless water heater brand for a large home, it is important to consider factors such as efficiency, durability, and customer support.
What is the average lifespan of an electric tankless water heater for a large home?
The average lifespan of an electric tankless water heater for a large home can vary depending on several factors, such as the quality of the unit, usage, maintenance, and water quality. Typically, a well-maintained electric tankless water heater can last for up to 20 years or more. However, if the unit is not well-maintained, or if it is exposed to hard water or other environmental factors, its lifespan can be significantly reduced. It is important to note that the size of the home and the number of occupants can also impact the lifespan of the unit. A larger home with more people will require the water heater to work harder, which can result in more wear and tear over time. Ultimately, regular maintenance, proper usage, and good water quality are key factors in extending the lifespan of an electric tankless water heater.
What is the best electric tankless water heater for a 5-bedroom house?
Choosing the best electric tankless water heater for a 5-bedroom house involves several factors that you need to consider. The first thing you need to determine is the flow rate of your household's hot water demand. The flow rate, measured in gallons per minute (GPM), is the amount of hot water you need at any given time. Based on the flow rate, you can determine the electric tankless water heater's size you need to purchase.
For a 5-bedroom house, a tankless water heater with a flow rate of at least 5 GPM is recommended. Some of the best electric tankless water heaters in the market that meet this requirement include Stiebel Eltron Tempra Plus 29 kW, EcoSmart ECO 36, and Rheem RTEX-18. These electric tankless water heaters are energy-efficient, reliable, and have a long lifespan.
Additionally, these water heaters have advanced features such as digital temperature control, self-modulating technology, and easy installation process, making them an ideal choice for a 5-bedroom house. It's essential to consult with a professional plumber to determine the best electric tankless water heater that suits your household's hot water demand.
What is the cost of installing a large electric tankless water heater in a home?
The cost of installing a large electric tankless water heater in a home can vary depending on several factors. The size of the unit, the complexity of the installation, and the location of the home are some of the factors that can affect the cost. On average, the cost of a large electric tankless water heater can range from $800 to $1,500, including installation. However, it's important to note that the cost can be higher if additional electrical work is needed, such as upgrading the electrical panel or wiring. It's also important to consider the long-term savings from using a tankless water heater, as they are more energy-efficient and can save homeowners money on their monthly utility bills. Ultimately, it's best to consult with a licensed plumber or electrician to get an accurate estimate for the cost of installing a large electric tankless water heater in a specific home.
What is the warranty offered by the manufacturers for large electric tankless water heaters?
The warranty offered by manufacturers for large electric tankless water heaters varies depending on the brand and model. Generally, most manufacturers offer warranties that range from 5 to 10 years. Some manufacturers also offer extended warranties for an additional fee. It is important to check the warranty terms and conditions before making a purchase, as some warranties may have limitations or exclusions.
When choosing a large electric tankless water heater, it is also important to consider factors such as energy efficiency, flow rate, and temperature control. These features can affect the overall performance and effectiveness of the unit. Additionally, it is important to have the unit installed by a professional to ensure that it is properly installed and functioning correctly. Regular maintenance and cleaning can also help prolong the life of the unit and prevent potential issues.
