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Best Whole Home Backup Generator (2024 Update)

When the power goes out, life can come to a standstill. From perishable foods spoiling to productivity grinding to a halt, extended outages can wreak havoc on households and disrupt daily life. Investing in the best whole home backup generator helps minimize disruption and maintain a sense of normalcy when utility power is lost. But with models ranging widely in power output, fuel source, and additional features, choosing the right whole house generator requires careful consideration.

Those shopping for the best whole home backup generator need to evaluate key factors like the generator’s wattage rating, fuel type, noise level, and maintenance needs. How large is your home? Are there specific appliances you want to power during an outage? Do emissions or noise restrictions apply where you live? Answering questions like these will help determine the ideal generator capacity, fuel type, and sound rating. Buyers should also assess a generator’s warranty coverage, rated lifespan, and ease of maintenance. Units that run on natural gas or propane tend to require less routine care than gasoline or diesel models. Taking the time to weigh these aspects will help homeowners identify the whole house generator that’s right for their needs and budget.

Choosing a backup generator is an important decision. By evaluating your household’s power requirements, location, and preferences ahead of time, you can find the perfect whole home generator that keeps you comfortable and connected when the lights go out. Reach out to a knowledgeable generator expert for personalized advice and recommendations for your situation.

10 Best Whole Home Backup Generator

# Product Image Product Name Product Notes Check Price
1
The product is ideal for providing portable power with dual fuel options, electric start, and a wheel kit.
2
The product is ideal for providing backup power during emergencies to a small or medium-sized home.
3
Ideal for providing reliable power and versatility for various outdoor activities or emergencies with dual fuel capabilities.
4
The product is ideal for providing standby power to homes during power outages with Wi-Fi enabled monitoring.
5
Ideal for powering homes and RVs as a backup generator, with the ability to run on both gas and propane.
6
This product is ideal for powering appliances and equipment in various settings using multiple fuel sources.
7
Ideal for residential and commercial use, providing efficient and precise mowing with quick maneuverability and a comfortable ride.
8
This product is ideal for home backup power, and can be started remotely or through electric means.
9
The product is ideal for providing reliable backup power for homes during power outages.
10
The product is ideal for providing high peak wattage for outdoor power equipment.
The product is ideal for providing portable power with dual fuel options, electric start, and a wheel kit.
The product is ideal for providing backup power during emergencies to a small or medium-sized home.
Ideal for providing reliable power and versatility for various outdoor activities or emergencies with dual fuel capabilities.
The product is ideal for providing standby power to homes during power outages with Wi-Fi enabled monitoring.
Ideal for powering homes and RVs as a backup generator, with the ability to run on both gas and propane.
This product is ideal for powering appliances and equipment in various settings using multiple fuel sources.
Ideal for residential and commercial use, providing efficient and precise mowing with quick maneuverability and a comfortable ride.
This product is ideal for home backup power, and can be started remotely or through electric means.
The product is ideal for providing reliable backup power for homes during power outages.
The product is ideal for providing high peak wattage for outdoor power equipment.

1. Wen Dual-Fuel Portable Generator With Electric Start

The versatile and reliable generator offers a powerful solution for all your power needs. With the simple turn of a selection dial, you can easily switch between gasoline and propane to maximize fuel efficiency. The generator boasts an impressive 11,000 surge watts and 8,300 running watts when using gasoline, and 9,500 surge watts and 7,500 running watts when using propane.

This generator is perfect for transfer switches and emergency backup with its voltage that easily switches from 120V to 240V. Its electric start feature allows for easy powering of the 457cc 4-stroke OHV engine with the turn of a key. The 6.6-gallon tank provides up to 8.5 hours of half load run time, ensuring that you have power for extended periods without having to refuel.

The generator includes four 120V GFCI outlets (5-20R), a 120V 30A twist lock outlet (L5-30R), a 120V/240V 50A outlet (NEMA 14-50R), and a 12V DC cigarette-lighter-style plug, providing you with a wide range of options for powering your devices. It also comes with a bottle of oil, a 47-inch LPG connection hose, and a two-year warranty.

2. Generac 7172 10kw Air Cooled Guardian Series

The 100-amp, NEMA 3R transfer switch with an aluminum enclosure is capable of powering 16 circuits of your home, whether it's installed indoors or outdoors. The Powers generator with True Power Technology offers exceptional power quality, maintaining less than 5 percent total harmonic distortion for the smooth operation of sensitive electronics and appliances.

Generac's G-Force Engine is designed for the rigorous demands of generator use with a pressure-lubricated design, providing reliable power and requiring less routine maintenance than competitive engines. This feature ensures that the generator is always running smoothly, providing power when you need it most.

Mobile Link Wi-Fi allows for remote monitoring of the generator's status from anywhere in the world via a smartphone, tablet, or PC. This feature provides peace of mind, knowing that you can check on your generator at any time, even if you're away from home.

The Powers generator comes with a 5-year limited warranty, ensuring that you have the support you need in case of any issues during the first five years of use. With this product, you can rest easy knowing that you have a reliable and efficient generator that will provide power in times of need.

3. Duromax Dual Fuel Portable Generator: Power & Safety Combo

Introducing the all-new generator with an enhanced control center and a suite of features that make it a versatile and reliable source of power. The generator comes equipped with a digital multimeter that displays essential parameters like voltage, frequency, total hours run, and hours until the recommended maintenance. The push-button start and front-facing fuel interface allow for quick and easy fuel switching, making it an ideal choice for users who value flexibility.

This generator is designed to run on gasoline or propane, giving users the freedom to choose the fuel type that suits their needs. The DuroMax "CO Alert Technology" is a standout feature that automatically shuts down the generator if it detects an unsafe level of carbon monoxide, ensuring the safety of the users and the environment.

At the heart of this generator is a powerful 500cc OHV DuroMax engine that delivers reliable and efficient performance. The engine features all copper windings, which are designed to provide longevity and durability, making the generator a reliable investment for years to come.

The power panel of this generator is fully loaded with four 120V GFCI household outlets, one 120V 30AMP outlet, one 120/240V 30AMP twist-lock outlet, and a heavy-duty 120/240V 50AMP outlet, making it transfer switch ready. This makes it a perfect option for homes, businesses, and outdoor events that require a reliable source of power.

4. Generac Guardian 24kw Home Standby Generator With Pwrview Transfer Switch Wi-Fi Enabled

This generator is designed to save customers valuable time and money on both product and installation costs. It is a cost-effective solution that can save customers up to $8,000 when compared to other similar products in the market.

One of the main benefits of this generator is its compact size. It takes up 70% less space than other competitive output products, which is a significant advantage for those with limited space. Despite its small size, the generator is still able to deliver reliable and efficient power.

The generator comes with a PWRview, Generac's home energy management system. This system allows generator owners to monitor and manage their home's energy usage, which can lead to a reduction in electric utility bills of up to 20%. By using PWRview, customers can easily track their energy usage and identify areas where they can cut costs.

With the amount of savings generated by using PWRview, customers could potentially save enough money to pay for their generator. This is a great incentive for those looking to invest in a reliable and efficient generator that will help them save money in the long run.

5. 12kw Dual Fuel Portable Generator – Duromax

The DuroMax XP12000EH is a versatile and powerful generator that is perfect for home, work, and outdoor activities. It is powered by a 457cc OHV engine that provides exceptional performance and reliability. With gasoline, it can deliver a peak wattage of 12,000 and a running wattage of 9,500. The running amperage at 120V is 79.17, while at 240V is 39.58. The runtime at 25% load is 19 hours, while at 50% load is 8 hours. When using propane, it can deliver a peak wattage of 11,400 and a running wattage of 9,025. The running amperage at 120V is 75.21, while at 240V is 37.6. The runtime at 25% load is 14 hours, while at 50% load is 7 hours.

One of the notable features of the DuroMax XP12000EH is its dual fuel technology that allows you to switch between propane and gasoline, depending on your preference and availability. This feature provides you with the freedom and flexibility to choose the most convenient fuel option for your needs. Additionally, the generator is equipped with an automatic shutoff function that protects your investment by turning off the generator when it senses low oil levels.

With 12,000 starting watts and 9,500 running watts, the DuroMax XP12000EH is capable of handling heavy loads, from lights and refrigerators to air conditioners and high-amperage power tools. Its DuroMax MX2 technology ensures that you get maximum power from each of the 120-volt receptacles. You can choose to operate the generator at both 120V and 240V simultaneously or at 120V only with full power.

The DuroMax XP12000EH is EPA and CARB approved for use in all 50 states, making it suitable for powering everyone anywhere. Its 4-stroke engine is reliable and efficient, ensuring that you get the most out of your generator.

6. Champion Power Equipment 100416 10,000/8,000-Watt Tri Fuel Portable Natural Gas

The 8000-watt portable generator is a versatile unit that can operate on natural gas, propane, or gasoline, making it a reliable power source for any situation. The generator comes with natural gas and propane hoses, allowing it to run on any fuel straight out of the box.

The generator features a 459cc Champion engine, which can be easily powered up with the convenient rocker switch. The battery is included, ensuring that the unit is always ready to go. The gasoline tank is made of steel, providing durability and longevity.

The generator also features an advanced monitoring system that allows users to track voltage, frequency, session run time, and total run time. This system makes it easy to monitor the generator's output and track maintenance intervals. Additionally, the UL-recognized sensor uses an LED to indicate CO shutoff or fault, ensuring the user's safety.

The generator boasts impressive power specifications. The gasoline model has 10,000 starting watts and 8000 running watts, while the propane model has 9000 starting watts and 7200 running watts. The natural gas model has 8750 starting watts and 7000 running watts. The unit also comes with engine oil included, ensuring that the user can get started right away.

The 8000-watt portable generator comes with a 3-year limited warranty and free lifetime technical support from dedicated experts. This gives users peace of mind, knowing that they can rely on the generator and receive expert support if needed.

7. Generac 7043

The True Power Technology is a powerful generator that offers exceptional power quality, with less than 5% total harmonic distortion (THD), ensuring that even the most sensitive electronics and appliances operate smoothly. It comes with a 200 amp NEMA 3 transfer switch that is rated for both indoor and outdoor use, making it a versatile addition to your home or business.

One of the standout features of this generator is its Generac Evolution Controller, which provides LED indicators for generator status, utility power presence, or maintenance requirements. This feature allows you to monitor your generator's performance at a glance, ensuring that you are always aware of its status.

The generator's all-weather aluminum enclosure is tough and durable, providing protection against the elements and ensuring that your generator can withstand even the harshest conditions. The enclosure also features three removable sides, making it easy to access and install.

It is important to note that the battery is not included with this generator. However, the Generac Battery 7043 5819 is sold separately, ensuring that you have everything you need to get your generator up and running.

8. Quietpower Pro Portable Generator

Introducing the powerful and versatile GM9000iED Dual Fuel Generator, designed to provide you with a reliable source of power in various settings. This generator boasts a 458cc 4-stroke OHV engine that produces an impressive 9000 peak watts and 7600 rated watts. With a 6.9 gallon fuel tank, you can choose between gas or propane to power your generator, giving you the freedom to select the fuel that best suits your needs. This makes it ideal for use in emergency home power situations, job sites, or even when camping with your RV.

Carrying this generator is a breeze, thanks to its sturdy steel handle and two rolling wheels that make it easy to transport from one location to another. Additionally, the 5 in 1 digital data center provides you with essential information such as hours, voltage, loading, gas fuel meter, and frequency. You can also start the generator remotely using the key fob, making it even more convenient to use.

The GM9000iED Dual Fuel Generator is not only powerful but also extremely quiet and fuel-efficient. It produces as low as 62 dBA noise with 25% loading at a distance of 23 feet. Additionally, the generator features a "LOW IDLE Mode" for maximum fuel efficiency, allowing you to save on fuel costs.

Your safety is a top priority, which is why the GM9000iED Dual Fuel Generator is equipped with a CO detect feature that automatically turns off the generator when an unsafe level of carbon monoxide is detected. This ensures that you and your family are protected from the harmful effects of carbon monoxide.

Finally, the generator's parallel capability is a game-changer, allowing you to double your power to 18,000 peak watts and 15,200 running watts by connecting two GM9000iED inverters using a parallel cord (sold separately). The voltage transfer switch enables you to parallel both 120v and 240v.

9. Guardian Power: 7.5kw Standby Generator Kit

The power outage can be a major inconvenience, but with the Generac 6485 Guardian Series, you can be assured that your home will continue to function smoothly during power outages. The Guardian Series is equipped with True Power Technology that delivers unparalleled power quality, ensuring smooth and safe operation of your sensitive electronics and appliances. With less than 5% Total Harmonic Distortion (THD), this generator ensures that your devices stay protected from voltage fluctuations.

The Generac 6485 comes with an 8 circuit 50 Amp, NEMA 1 transfer switch that is ideal for indoor use. This lightweight transfer switch automatically transfers power to your essential appliances and electronics, such as your refrigerator, lights, and furnace, during a power outage. This means that you won't have to worry about manually switching on the generator or plugging in appliances one by one.

The Generac 6485 is equipped with the Evolution Controller that offers LED indicators for generator status, utility power presence, or maintenance requirements. This feature allows you to monitor the generator's performance and keep track of any maintenance requirements easily. Additionally, the controller's user-friendly interface makes it easy for you to operate the generator.

The Generac 6485 is designed to withstand harsh weather conditions with its all-weather steel enclosure. The enclosure is tough and durable, ensuring that the generator remains protected from the elements. The enclosure comes with three removable sides, providing easy access to the generator during installation, service, and maintenance.

Note that the Generac 6485 Guardian Series does not come with a battery. However, the Generac battery model 5819 can be purchased separately. Overall, the Generac 6485 Guardian Series is an excellent choice for homeowners looking for a reliable and efficient backup power source. It is easy to use, durable, and delivers unmatched power quality.

10. Westinghouse Outdoor Power Equipment 9500 Peak Watt

The Westinghouse 7500 Running Watts and 9500 Peak Watts Portable Generator is a reliable and powerful solution for your power needs. With a remote start feature, including an included key fob, electric and recoil start options, and up to 11 hours of run time on a 6.6-gallon fuel tank with a fuel gauge, this generator offers convenience and efficiency.

The grounding system is bonded neutral, and the generator features two GFCI (Ground Fault Circuit Interrupter) 5-20R 120V household duplex receptacles and one L14-30R 120/240V twist-lock receptacle. Additionally, all outlets have rubber covers for added safety.

This plug-and-play generator comes with a remote start key fob, 12V battery charger, oil, an oil funnel, a tool kit, and a user's manual to get you started right out of the box. Minimal assembly is required, making set up a breeze.

The generator is powered by a 420cc Westinghouse 4-Stroke OHV engine, featuring a long-lasting cast iron sleeve with automatic low oil shutdown and digital hour meter. All Westinghouse Portable Generators are functionally tested in the factory and may contain minimum residual oil and/or fuel odor.

This generator is EPA and CARB compliant, and it is backed by a 3-year limited service, labor, and parts coverage with nationwide customer service network. With its impressive power output and easy-to-use features, this generator is an ideal solution for emergency backup power, camping, and outdoor events.

Best Whole Home Backup Generator FAQs

Are there any maintenance requirements for a whole home backup generator?

Yes, there are maintenance requirements for a whole home backup generator. Just like any other mechanical equipment, a backup generator needs regular maintenance to ensure that it operates efficiently and reliably when it's needed most. Some of the maintenance tasks that need to be performed include oil and filter changes, air filter replacement, spark plug replacement, battery checks, and coolant level checks. It's also important to inspect the generator for any signs of wear and tear, such as loose or damaged belts and hoses.

Most manufacturers recommend that the generator be serviced at least once a year, preferably before the start of the winter season when power outages are more likely to occur. It's also important to run the generator for a few minutes every month to ensure that it's in good working order and to prevent any fuel from going stale.

Overall, regular maintenance is essential for a whole home backup generator to ensure that it's ready to provide reliable power when it's needed most. It's always best to consult the manufacturer's manual for specific maintenance guidelines and recommended service intervals.

Are there any noise restrictions for whole home backup generators?

Yes, there are noise restrictions for whole home backup generators. In most areas, there are local noise ordinances that limit the amount of noise that can be produced by a generator. These ordinances are in place to protect nearby residents from excessive noise levels that can disrupt sleep and daily activities.

The noise level of a generator is typically measured in decibels (dB). Whole home backup generators can produce anywhere from 60 to 80 dB of noise, depending on the model and size of the generator.

To comply with noise restrictions, it is recommended to choose a generator with a lower dB rating and to position the generator as far away from neighboring homes as possible. Installing sound barriers, such as walls or fences, can also help to reduce the noise level.

It is important to check with local authorities and obtain any necessary permits before installing a whole home backup generator to ensure that you comply with all noise restrictions and regulations in your area.

Can a whole home backup generator be installed by a homeowner or is professional installation required?

While it is possible for a homeowner to install a whole home backup generator, it is highly recommended to seek professional installation services. Installing a backup generator involves electrical work and requires a thorough understanding of local building codes, safety regulations, and manufacturer instructions. Improper installation can not only lead to the generator not functioning properly but also pose a safety hazard to the homeowner and their property.

Professional installation services ensure that the generator is properly installed, connected to the electrical system, and tested for optimal performance. Additionally, professional installation services often come with warranties and maintenance agreements, providing peace of mind to the homeowner.

It is important to note that the installation process may vary depending on the type and size of the generator, as well as the location and electrical setup of the home. Therefore, it is crucial to consult with a licensed and experienced professional to determine the best course of action for your specific needs.

How do whole home backup generators compare in price to other backup power options?

Whole home backup generators are generally more expensive than other backup power options, but they offer more reliable and comprehensive power coverage. Portable generators, for example, are a more affordable option, but they typically only provide enough power for a few appliances or devices and require manual setup and fueling. On the other hand, whole home backup generators are permanently installed and connected to the home's electrical system, providing seamless and automatic power in the event of an outage.

The cost of a whole home backup generator will depend on factors such as the size and capacity of the unit, as well as the installation and maintenance fees. Generally, a whole home backup generator can cost anywhere from $5,000 to $15,000 or more. However, this investment can provide peace of mind and protection for the entire home during extended power outages or emergencies. It's important to weigh the cost against the potential benefits and choose the backup power option that best fits your needs and budget.

How much power output is needed for a whole home backup generator?

The power output needed for a whole home backup generator depends on the size of your home and the number of appliances you need to power in case of an outage. A typical whole home backup generator ranges from 22 to 48 kilowatts (kW), which should be enough to power all the essential appliances and systems in your home.

To determine the right size of generator for your home, you need to calculate the total wattage of the appliances you need to power during an outage. This includes your HVAC system, refrigerator, lights, water heater, and other essential appliances. You can consult an electrician or generator dealer to help you with the calculations.

It's important to note that a whole home backup generator is a significant investment, and you need to choose the right size for your needs and budget. A larger generator may be more expensive, but it provides better peace of mind during extended power outages.

What are the top-rated brands of whole home backup generators?

There are several top-rated brands of whole home backup generators, each with their own unique features and benefits. One of the most popular brands is Generac, which offers a wide range of standby generators that are designed to provide reliable power during outages. Generac's generators are known for their durability and ease of use, and they come in a variety of sizes to suit any home or business.

Another highly rated brand is Kohler, which offers a range of generators that are designed to provide seamless backup power for homes and businesses. Kohler's generators are known for their quiet operation and advanced features, such as remote monitoring and automatic load management.

Other top-rated brands of whole home backup generators include Cummins, Briggs & Stratton, and Champion. Each of these brands offers a range of generators that are designed to meet the needs of different types of customers, from homeowners to businesses.

Ultimately, the choice of which brand to choose will depend on a variety of factors, including your budget, the size of your home or business, and the specific features and benefits that you are looking for in a generator.

What fuel options are available for whole home backup generators?

When it comes to whole home backup generators, there are several fuel options available. The most common fuel types are propane, natural gas, and diesel. Propane is a popular choice because it is readily available, burns cleanly, and is less expensive than diesel. Natural gas is also a common option because it is connected to most homes and is more reliable than other fuel types. Diesel fuel is a bit more expensive than propane and natural gas, but it is a good choice for areas where natural gas is not available or during extended power outages. Some newer generators also have the ability to run on multiple fuel types, offering increased flexibility and convenience. When choosing a fuel type for your backup generator, it is important to consider factors such as availability, cost, and environmental impact. Consulting with a professional generator installer can also help you determine the best fuel option for your specific needs.

What is the average lifespan of a whole home backup generator?

The average lifespan of a whole home backup generator depends on various factors such as the quality of the equipment, how often it is used, and the level of maintenance it receives. Generally, a well-maintained backup generator can last for about 20 to 30 years. However, if it is not properly taken care of, the lifespan can be significantly reduced.

To ensure that your backup generator lasts for as long as possible, it is important to have it installed and maintained by a licensed and experienced professional. Regular maintenance checks such as oil changes, filter replacements, and battery checks should also be conducted to ensure that the generator is functioning properly.

It is also worth noting that the type of fuel used can also impact the lifespan of a backup generator. Propane and natural gas generators tend to have longer lifespans compared to diesel generators. Overall, the lifespan of a whole home backup generator can vary, but with proper care and maintenance, it can last for many years.

What is the warranty coverage for whole home backup generators?

The warranty coverage for whole home backup generators varies depending on the manufacturer and model. Typically, the warranty coverage for these generators ranges from 2 to 5 years. Some manufacturers may also offer extended warranty options for an additional cost. It's important to review the warranty information provided by the manufacturer before purchasing a generator to ensure that you understand the terms and conditions of the warranty. Most warranties cover defects in materials and workmanship, but may not cover damage caused by improper installation, maintenance, or misuse. Additionally, some warranties may require that the generator be installed by a licensed professional to ensure that the unit is properly installed and maintained. Overall, it's important to choose a reputable manufacturer and review the warranty information to ensure that you are protected in the event of any issues with your whole home backup generator.

What safety features should be considered when selecting a whole home backup generator?

When selecting a whole home backup generator, safety features are of utmost importance. Here are some key safety features to consider:

1. Automatic shut-off: This feature automatically shuts off the generator if it detects a problem, such as low oil pressure or high temperature.

2. Grounding: It's important that the generator is properly grounded to prevent electrical shocks.

3. Carbon monoxide detector: Generators produce carbon monoxide, which can be deadly if it builds up in an enclosed space. A carbon monoxide detector will alert you if levels become unsafe.

4. Transfer switch: A transfer switch ensures that the generator is properly connected to your home's electrical system and prevents backfeeding, which can be dangerous for utility workers.

5. Overload protection: This feature prevents the generator from being overloaded, which can cause damage and create a safety hazard.

6. Weather-resistant casing: A weather-resistant casing protects the generator from the elements and reduces the risk of electrical hazards caused by exposure to water.

7. Low oil shutdown: This feature automatically shuts off the generator if the oil level is too low, protecting the engine from damage.

By considering these safety features, you can ensure that your whole home backup generator is safe and reliable in case of a power outage.

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