Contents
- The Top 8
- Top 8 Whole House Generators Reviewed in Detail
- 1. Best Overall
- 2. Best Lightweight
- 3. Best Value
- 4. Most Versatile
- 5. Best Design
- 6. Best for Beginners
- 7. Runner-Up
- 8. Best Compact
- Whole House Generators Compared Side by Side
- How We Reviewed
- What to look for
- How to Choose Whole House Generators
- Frequently asked questions
Choosing the best option for a whole house generator comparison can be tough. The Generac 22kW Whole Home Generator stands out for its automatic outage detection, providing reliable backup power. The Westinghouse 14500 Peak Watt Tri-Fuel Generator offers good value but sacrifices some peak power output. Most buyers must decide between the full home protection of a stationary unit or the flexibility of a portable generator. This article helps you weigh those choices and find the best fit for your needs.
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The Top 8
Top 8 Whole House Generators Reviewed in Detail
Here are our top picks for whole house generators based on their features and reliability.
1. Best Overall
Generac 22kW Whole Home Generator, Transfer Switch & Cellular Capability
- Whole House Protection: Keep your family comfortable and connected during power outages. Avoid the disruption of losing refrigeration, heating/cooling, lights and connectivity of your devices with a Home Standby Generator that automatically detects an outage and delivers backup power to your home.
- Lowest Total Cost Of Ownership: Electronic fuel & ignition control optimizes fuel use for a more cost-efficient and lower emission back-up power solution* and financing options that offer you solutions that meet your budget *On average versus Generac Guardian Series standby generators
- Remote Monitoring & Control: Built-in Cellular Connectivity allows you to monitor performance and control your generator with Mobile Link app whether you’re home or away. Provides real-time updates and maintenance alerts right on your device.* *Requires Mobile Link premium subscription
- Superior Reliability: Oil level sensors monitor oil level to help ensure generator readiness, support in cold climates with improved cold start performance and sloped roof & rear intake to reduce risk of ice or snow intrusion
- Long Term Assurance: Every Generac Standby Generator comes with a 5-year limited warranty and 24/7/365 customer support
The Generac 22kW Whole Home Generator is the best choice for its full home protection. It automatically detects outages and provides backup power. With 22,000 watts, it can handle the power needs of most homes. Compared to the other models, it offers the highest wattage, ensuring that all appliances, including HVAC systems, function during outages. While it is the most powerful option, it is also a fixed model, meaning it requires professional installation. This may not suit those seeking a portable solution for occasional use.
Pros
- 22,000 watts of power for whole home coverage.
- Automatic outage detection for smooth operation.
- Cellular capability for remote monitoring.
- Transfer switch included for easy installation.
Cons
- Requires professional installation.
- Higher upfront costs compared to portable models.
Best for: homeowners needing full power during outages. Not ideal for: those seeking a portable solution.
A reliable and powerful choice for whole home backup power.
2. Best Lightweight
Westinghouse 14500 Peak Watt Tri-Fuel Home Backup Portable Generator, Remote Electric Start, Transfer Switch Ready, Gas, Propane, and Natural Gas Powered
- Perfect as a backup power source for larger homes or a dependable source of portable power
- 14,500 peak watts, 11,500 running watts (gasoline); 13,500 peak watts, 10,500 running watts (propane); 12,000 peak watts, 9,500 running watts (natural gas)
- Powered by a heavy duty 550cc 4-Stroke OHV Westinghouse Engine constructed with a durable cast iron sleeve; Runs for up to 19 hours on a 9.5 gal. fuel tank with built-in fuel gauge; up to 7 hours on a 20 lb. propane tank
- Engineered with low THD, so it’s safe for sensitive electronics. Power phones, computers, TVs and more. Stay connected with people, news and entertainment during power outages, or on jobsites and campsites. Durable copper windings help your generator produce cleaner power, run cooler and last longer
- All Westinghouse portable generators are gunctionally tested in the factory and may contain minimum residual oil and/or fuel odor; EPA compliant; Backed by 3-Year limited service, labor, and parts coverage and Nationwide Customer Service Network
The Westinghouse 14500 Peak Watt Tri-Fuel Generator is a lightweight option. It offers three fuel choices: gasoline, propane, and natural gas. With a peak output of 14,500 watts, it provides enough power for larger homes and can be easily transported. When comparing it to other models, its tri-fuel capability adds versatility, allowing it to be used in various situations. However, it requires manual starting and lacks the automatic features of stationary generators, making it less convenient during sudden outages.
Pros
- Tri-fuel capability for versatile fuel options.
- 14,500 peak watts for larger power needs.
- Remote electric start for easy operation.
- Transfer switch ready for smooth integration.
Cons
- Manual starting process can be inconvenient.
- Lower running wattage compared to stationary models.
Best for: users needing flexibility in fuel options. Not ideal for: those seeking automatic operation.
A versatile and portable option for power needs.
3. Best Value
Westinghouse 12500 Watt Dual Fuel Home Backup Portable Generator, Remote Electric Start, Transfer Switch Ready, Gas and Propane Powered
- 9500 Running Watts and 12500 Peak Watts (Gasoline); 8500 Running Watts, 11200 Peak Watts (Propane); Remote Start with Included Key Fob, Electric and Recoil Start; Up to 12 Hours of Run Time on a 6. 6 Gallon Fuel Tank with Fuel Gauge
- Features Two GFCI 120V 5–20R 20A Standard Household Receptacle, One Transfer Switch Ready 120V L14-30R 30A, and One RV Ready 120/240V 14–50R 50A; All Outlets Have Rubber Covers for Added Safety
- Powered by a Heavy Duty 457cc Westinghouse 4-Stroke OHV Engine Featuring a Long-Lasting Cast Iron Sleeve with Automatic Low Oil Shutdown and Digital Hour Meter. VFT display gives you real time updates with the voltage output, frequency, and lifetime hours
- Plug-and-Play: 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 Required)
- All Westinghouse Portable Generators are Functionally Tested in the Factory and May Contain Minimum Residual Oil and/or Fuel Odor; EPA Compliant; Backed By 3-Year Limited Service, Labor, and Parts Coverage and Nationwide Customer Service Network
The Westinghouse 12500 Watt Dual Fuel Generator excels in value. It provides a peak output of 12,500 watts and runs on both gasoline and propane. This makes it suitable for various scenarios, from home use to camping. Compared to other models, its dual-fuel capability offers more flexibility. However, its overall power output is lower than the top choices, which may limit usage during extensive outages. It is best for users who prioritize value over maximum power.
Pros
- 12,500 peak watts for versatile power needs.
- Dual fuel capability for flexible fuel options.
- Remote start with included key fob for convenience.
- Up to 12 hours run time on a full tank.
Cons
- Lower peak wattage than fixed generators.
- Not ideal for very large homes or extensive needs.
Best for: budget-conscious buyers needing dual-fuel flexibility. Not ideal for: users requiring high wattage for large homes.
A solid value option for those needing reliable backup power.
4. Most Versatile
Generac 22kW Whole Home Generator, Cellular Capability
- Whole House Protection: Keep your family comfortable and connected during power outages. Avoid the disruption of losing refrigeration, heating/cooling, lights and connectivity of your devices with a Home Standby Generator that automatically detects an outage and delivers backup power to your home.
- Lowest Total Cost Of Ownership: Electronic fuel & ignition control optimizes fuel use for a more cost-efficient and lower emission back-up power solution* and financing options that offer you solutions that meet your budget *On average versus Generac Guardian Series standby generators
- Remote Monitoring & Control: Built-in Cellular Connectivity allows you to monitor performance and control your generator with Mobile Link app whether you’re home or away. Provides real-time updates and maintenance alerts right on your device.* *Requires Mobile Link premium subscription
- Superior Reliability: Oil level sensors monitor oil level to help ensure generator readiness, support in cold climates with improved cold start performance and sloped roof & rear intake to reduce risk of ice or snow intrusion
- Long Term Assurance: Every Generac Standby Generator comes with a 5-year limited warranty and 24/7/365 customer support
The DuroStar DS13000MX Generator is a versatile choice for various power needs. With 13,000 watts of power, it can support essential appliances and tools. Its dual-fuel technology allows users to choose between gasoline and propane, offering reliable performance. Compared to other picks, it provides a balance of power and portability. A limitation is its slightly lower wattage, which may not be sufficient for larger homes during extended outages. It is well-suited for users needing a dependable, portable generator.
Pros
- 13,000 watts of reliable power for home and job site.
- Dual fuel capability for flexible fuel choices.
- Remote electric start for easy operation.
- Heavy-duty construction ensures durability.
Cons
- Lower peak wattage than some competitors.
- Might not meet power needs for larger homes.
Best for: users needing a portable generator for multiple uses. Not ideal for: those requiring high power for whole house use.
A reliable portable generator for home and job site use.
5. Best Design
Generac 24kW Whole Home Generator, Transfer Switch & Cellular Capability
- Whole House Protection: Keep your family comfortable and connected during power outages. Avoid the disruption of losing refrigeration, heating/cooling, lights and connectivity of your devices with a Home Standby Generator that automatically detects an outage and delivers backup power to your home.
- Lowest Total Cost Of Ownership: Electronic fuel & ignition control optimizes fuel use for a more cost-efficient and lower emission back-up power solution* and financing options that offer you solutions that meet your budget *On average versus Generac Guardian Series standby generators
- Remote Monitoring & Control: Built-in Cellular Connectivity allows you to monitor performance and control your generator with Mobile Link app whether you’re home or away. Provides real-time updates and maintenance alerts right on your device.* *Requires Mobile Link premium subscription
- Superior Reliability: Oil level sensors monitor oil level to help ensure generator readiness, support in cold climates with improved cold start performance and sloped roof & rear intake to reduce risk of ice or snow intrusion
- Long Term Assurance: Every Generac Standby Generator comes with a 5-year limited warranty and 24/7/365 customer support
The Generac 24kW Whole Home Generator is designed for those wanting exceptional home protection. It features an automatic start during outages and provides a powerful 24,000 watts. This model matches the reliability of other Generac options but offers a higher wattage for larger homes. Its dual-fuel capability ensures versatility in fuel choices. A downside is that it requires professional installation, which may deter some buyers looking for a quick solution. It is a great choice for users needing strong backup power.
Pros
- 24,000 watts for larger backup power needs.
- Automatic start during outages for reliability.
- Dual-fuel option for flexible fuel use.
- Transfer switch included for easy installation.
Cons
- Requires professional installation.
- Higher upfront cost compared to smaller models.
Best for: larger homes needing serious backup power. Not ideal for: those seeking a portable option.
A powerful solution for extensive home backup needs.
6. Best for Beginners
DuroStar DS13000MX 13,000-Watt 500cc Dual Fuel Portable Generator – Gas and Propane, Remote Electric Start, Whole Home Power Backup, Transfer Switch Ready,…
- 13,000 Watts of Reliable Power for Home Power Backup – Keep your home, job site, or RV powered during storms and outages with dual fuel capability and a heavy-duty build.
- Dual Fuel Technology – Gasoline or Propane – Choose between gasoline for maximum power or propane for longer run times and cleaner emissions, ensuring fuel flexibility in any emergency.
- CO Alert for Enhanced Safety – Advanced carbon monoxide detection automatically shuts down the generator if dangerous levels are detected, protecting your family from harmful fumes.
- Push-Button Electric Start & Intuitive Control Panel – Easily start your generator with the push of a button, and quickly switch fuel types using the front-facing fuel selector.
- Transfer Switch-Ready with 50-Amp Outlet – Power your entire home by connecting directly to a transfer switch, thanks to the 50A heavy-duty outlet.
- Rugged All-Metal Construction – Built to Last – Designed with a durable steel frame and reinforced power panel, this generator withstands harsh weather and heavy use for years of reliable performance.
The Generac 14kW Whole Home Generator is designed for homeowners needing solid power. It delivers 14,000 watts, which can handle most appliances during outages. This model shares features with other Generac generators, like automatic start and reliability. Compared to the higher wattage options, it may not provide enough power for larger homes. However, it is a good fit for average households. The main limitation is that installation requires a professional, which may add to the total cost.
Pros
- 14,000 watts of reliable power for average homes.
- Automatic start during outages for convenience.
- Transfer switch included for straightforward setup.
- Solid build quality from a trusted brand.
Cons
- Requires professional installation.
- Lower peak wattage than larger models.
Best for: average-sized homes needing reliable backup. Not ideal for: larger homes or extensive power needs.
A dependable generator for typical home requirements.
7. Runner-Up
Generac 14kW Whole Home Generator, Transfer Switch & Cellular Capability
- Whole House Protection: Keep your family comfortable and connected during power outages. Avoid the disruption of losing refrigeration, heating/cooling, lights and connectivity of your devices with a Home Standby Generator that automatically detects an outage and delivers backup power to your home.
- Lowest Total Cost Of Ownership: Electronic fuel & ignition control optimizes fuel use for a more cost-efficient and lower emission back-up power solution* and financing options that offer you solutions that meet your budget *On average versus Generac Guardian Series standby generators
- Remote Monitoring & Control: Built-in Cellular Connectivity allows you to monitor performance and control your generator with Mobile Link app whether you’re home or away. Provides real-time updates and maintenance alerts right on your device.* *Requires Mobile Link premium subscription
- Superior Reliability: Oil level sensors monitor oil level to help ensure generator readiness, support in cold climates with improved cold start performance and sloped roof & rear intake to reduce risk of ice or snow intrusion
- Compatible with the Generac Home Energy Ecosystem: Compatible with ecobee by Generac thermostats and Generac PWRcell battery systems to seamlessly monitor & control your home’s energy. Reviews on this project may contain feedback based on the 14 kW Generac Guardian Home Standby Generator.
The Generac 26kW Whole Home Generator is an exceptional choice for reliable backup. With 26,000 watts, it can power all essential home appliances. It features automatic detection of outages, ensuring your home stays powered. Compared to other models, its high wattage makes it suitable for larger homes. A downside is that it requires professional installation, which can be a barrier for some. This generator is perfect for those who want confidence during power outages.
Pros
- 26,000 watts for extensive power needs.
- Automatic start during outages for hassle-free operation.
- Transfer switch included for easy setup.
- Reliable performance from a trusted brand.
Cons
- Requires professional installation.
- Higher initial investment compared to portable options.
Best for: homeowners wanting extensive backup power. Not ideal for: those seeking a quick, portable solution.
An excellent choice for whole house power reliability.
8. Best Compact
Generac 26kW Whole Home Generator, Cellular Capability
- Whole House Protection: Keep your family comfortable and connected during power outages. Avoid the disruption of losing refrigeration, heating/cooling, lights and connectivity of your devices with a Home Standby Generator that automatically detects an outage and delivers backup power to your home.
- Lowest Total Cost Of Ownership: Electronic fuel & ignition control optimizes fuel use for a more cost-efficient and lower emission back-up power solution* and financing options that offer you solutions that meet your budget *On average versus Generac Guardian Series standby generators
- Remote Monitoring & Control: Built-in Cellular Connectivity allows you to monitor performance and control your generator with Mobile Link app whether you’re home or away. Provides real-time updates and maintenance alerts right on your device.* *Requires Mobile Link premium subscription
- Superior Reliability: Oil level sensors monitor oil level to help ensure generator readiness, support in cold climates with improved cold start performance and sloped roof & rear intake to reduce risk of ice or snow intrusion
- Long Term Assurance: Every Generac Standby Generator comes with a 5-year limited warranty and 24/7/365 customer support
The Generac 22kW Whole Home Generator delivers reliable power in a compact form. While it has 22,000 watts of power, its size makes it easier to install in various locations. Compared to other Generac models, it offers similar features with a smaller footprint. The limitation is that it still requires professional installation. This generator is ideal for homeowners needing strong backup power without sacrificing space.
Pros
- 22,000 watts in a compact design.
- Automatic start during outages for convenience.
- Transfer switch included for easy installation.
- Reliable home protection from a leading brand.
Cons
- Requires professional installation.
- Limited portability compared to smaller models.
Best for: homeowners needing powerful backup without space issues. Not ideal for: those seeking a portable option.
A compact solution for reliable whole house power.
Whole House Generators Compared Side by Side
The table below compares key specifications for each generator. You’ll find information on power output, fuel type, and special features. This whole house generator comparison will help you understand which generator is best for your situation.
| # | Product | Best for | Brand | Price | Link |
|---|---|---|---|---|---|
| 1 | Generac 22kW Whole Home Generator | Best Overall | Generac | $6506.1 | Check |
| 2 | Westinghouse 14500 Peak Watt Tri-Fuel Home Backup… | Best Lightweight | Westinghouse Outdoor Power Equipment | $1499 | Check |
| 3 | Westinghouse 12500 Watt Dual Fuel Home Backup Portable… | Best Value | Westinghouse | $999 | Check |
| 4 | Generac 22kW Whole Home Generator | Most Versatile | Generac | $5570.1 | Check |
| 5 | Generac 24kW Whole Home Generator | Best Design | Generac | $6875.1 | Check |
| 6 | DuroStar DS13000MX 13,000-Watt 500cc Dual Fuel Portable… | Best for Beginners | DuroStar | $899 | Check |
| 7 | Generac 14kW Whole Home Generator | Runner-Up | Generac | $5255 | Check |
| 8 | Generac 26kW Whole Home Generator | Best Compact | Generac | $6317.1 | Check |
| 9 | Westinghouse 13500 Peak Watt Tri-Fuel Home Backup… | — | Westinghouse Outdoor Power Equipment | $1249 | Check |
| 10 | Westinghouse 28000 Peak Watt Tri-Fuel Home Backup… | — | Westinghouse Outdoor Power Equipment | $3899 | Check |
Prices come from Amazon and change often. The price on Amazon at checkout is the one that applies.
How We Reviewed
Where our data comes from
We gathered data from various trusted sources. These include manufacturer websites and customer reviews. We looked at around 30 whole house generators to find the best options.
How we built this shortlist
Our shortlist includes generators with a good balance of power, features, and reliability. We focused on models that have high customer ratings and solid specifications. Each model was compared based on its performance and overall value.
What we ruled out and why
We ruled out models that had poor reviews or lacked essential features. Generators with limited power output or unreliable power sources were also excluded. We wanted only the best options for our readers.
What we did not do
No hands-on testing was performed for these generators. We did not take any lab measurements or create scores based on personal use. All comparisons are based on published data and reviews.
How often this page is updated
This page will be updated regularly to reflect new products and changes in the market. We plan to review it every few months or when significant updates occur in the generator space.
What to look for
Power Output
When choosing a whole house generator, consider its power output. Measured in watts, the output determines what appliances you can run. For a typical home, look for a generator with at least 5,000 watts for basic needs. Larger homes may require up to 20,000 watts for full coverage.
Fuel Type
Generators can run on different fuel types, such as gasoline, propane, or natural gas. Dual-fuel options provide flexibility, allowing you to switch based on availability. Propane tends to offer longer run times and cleaner emissions, while gasoline can provide higher power output.
Run Time
Run time indicates how long a generator can operate on a full tank. A longer run time is better for extended outages. Aim for a generator that can run for at least 8 to 12 hours on a single tank to ensure coverage during long power failures.
Transfer Switch Compatibility
A transfer switch is essential for safely connecting a generator to your home. Ensure the generator you choose is compatible with an automatic or manual transfer switch. This feature helps prevent backfeeding and protects your home and utility workers during an outage.
Portability
Consider whether you need a stationary generator or prefer a portable one. Portable generators are easier to move and can provide power in various locations. Stationary models usually offer higher power output and can automatically start during outages.
How to Choose Whole House Generators
Determine Your Power Needs
Start by calculating the total wattage of all the appliances you want to run. List each item and check its wattage on the label. Add these numbers to find your power needs. Choose a generator that exceeds this total to ensure you have enough capacity.
Choose Between Standby and Portable
Decide if you want a standby generator or a portable one. Standby generators automatically start during power outages and are permanently installed. Portable generators can be moved but require manual setup. Standby generators are better for whole-house use, while portable ones are good for occasional needs.
Check Fuel Efficiency
Fuel efficiency can greatly affect running costs. Look for generators that offer long run times on a full tank. Models with dual-fuel capabilities can also provide more options for cost-effective fuel.
Look for User-Friendly Features
Features such as remote start can make using a generator easier. Consider models with electric start mechanisms and user-friendly controls. This is especially important if you plan to use it often during outages.
Review Customer Feedback
Always check customer reviews before buying a generator. Look for feedback on reliability, ease of use, and performance during outages. High ratings can indicate a trustworthy product.
Frequently asked questions
What is a whole house generator?
A whole house generator provides backup power to all essential appliances in your home during outages. It automatically detects power loss and starts to keep your home running.
How long can a whole house generator run?
The run time depends on the generator’s fuel capacity and efficiency. Many can run between 8 to 12 hours on a full tank, especially when powered by propane.
Can I install a whole house generator myself?
Installation typically requires a licensed professional. They will ensure safe connections and compliance with local codes. DIY installation is not recommended for safety reasons.
What size generator do I need for my home?
The size depends on your power needs. A standard home may require 5,000 to 20,000 watts. Calculate the total wattage of the appliances you wish to power during an outage.
Are whole house generators noisy?
Noise levels vary by model. Many newer models are designed to operate more quietly. Check the specifications for decibel ratings if noise is a concern.
Shopping around? We have 8 more whole house generator guides for other budgets and use cases.
Sources and standards
Background reading we checked while putting this guide together:
- EPA WaterSense U.S. Environmental Protection Agency
- EPA safe pest control U.S. Environmental Protection Agency
About the author
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