Contents
- The Top 8
- Top 8 Whole House Generators Reviewed in Detail
- 1. Editor’s Choice
- 2. Best for Daily Use
- 3. Best Splurge
- 4. Best for Beginners
- 5. Best Premium
- 6. Best Heavy-Duty
- 7. Best for Small Spaces
- 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
You may wonder, is whole house generator worth it? The Generac 22kW Whole Home Generator is our top pick. It automatically detects outages and provides backup power to your home, keeping everything running smoothly. The Westinghouse 14,500 Peak Watt Tri-Fuel Generator is our value pick. It can run on gasoline, propane, or natural gas, but it requires manual starting during outages. Many buyers find this category comes down to deciding between automatic or manual operation. The rest of this page offers insights into specific models to help you choose.
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The Top 8
Top 8 Whole House Generators Reviewed in Detail
This section reviews top whole house generators. Each offers unique features for different needs.
1. Editor’s Choice
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 offers reliable power during outages. It automatically detects power loss and starts up. You can keep your home connected and comfortable.
Pros
Automatic startup during outages. Provides power for essential home needs. Cellular capability allows remote monitoring.
Cons
Requires professional installation. Might be more than needed for small homes.
Best for medium to large homes needing consistent power during outages.
The Generac 22kW Whole Home Generator is a solid choice for whole house protection.
2. Best for Daily Use
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 versatile. You can use gas, propane, or natural gas. It delivers strong power for larger homes and portable needs.
Pros
Tri-fuel capability increases flexibility. Remote electric start adds convenience. High peak watts for running heavy appliances.
Cons
Larger size may limit portability. Some users report noise during operation.
Good for homeowners needing backup power for larger appliances or remote use.
The Westinghouse 14500 generator is a flexible option with good power output.
3. Best Splurge
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 is efficient. It runs on both gasoline and propane. This model is well-suited for emergencies and outdoor use.
Pros
Remote start with key fob is user-friendly. Good run time with a 6.6-gallon tank. Compact design for easier transport.
Cons
Lower running watts on propane may limit usage. Can be noisy during operation.
Best for families needing backup power for home and outdoor activities.
The Westinghouse 12500 generator offers reliability and convenience for many situations.
4. Best for Beginners
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 Generac 24kW Whole Home Generator is similar to the 22kW model. It provides excellent whole home protection during outages.
Pros
Automatic operation keeps the home powered. Good for all home essentials. High power capacity.
Cons
Installation may require a professional. May be excessive for smaller homes.
Great for homes that frequently experience power outages and need reliable backup.
The Generac 24kW generator is an excellent choice for whole home power needs.
5. Best Premium
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 DuroStar DS13000MX is a powerful dual fuel generator. It operates on gasoline or propane, giving you flexibility.
Pros
Heavy-duty build ensures reliability. Good peak wattage for home backup. Remote start adds convenience.
Cons
Heavier than other portable options. Limited runtime on propane compared to gasoline.
Ideal for those needing power for home, job sites, or RV.
The DuroStar DS13000MX is a strong choice for portable power needs.
6. Best Heavy-Duty
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 provides solid backup power. It automatically kicks in during outages, keeping your home connected.
Pros
Automatic detection of outages. Compact size fits many homes. Good power capacity for essential needs.
Cons
Needs professional installation. May not meet power needs for larger homes.
Good for small to medium homes looking for reliable power.
The Generac 14kW generator is a good option for home backup power.
7. Best for Small Spaces
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 the largest in this review. It offers substantial power for very large homes.
Pros
Excellent for extensive power needs. Automatic startup is convenient. Maintains essential functions during outages.
Cons
Higher cost may not be justifiable for smaller homes. Requires professional installation.
Best for large homes in areas prone to outages.
The Generac 26kW generator is a powerful choice for whole house needs.
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 models provide great whole house protection. They automatically detect outages and deliver reliable power.
Pros
Ensures comfort during power loss. Keeps essential appliances running. Cellular capability for monitoring.
Cons
May require more upfront investment. Installation costs can add up.
Best for homeowners wanting confidence during outages.
Generac whole home generators are a solid investment for reliable backup power.
Whole House Generators Compared Side by Side
The table below compares key specifications of top whole house generators. It shows power output, fuel types, and special features. If you’re wondering if a whole house generator is worth it, look closely at the details that matter most to you.
| # | Product | Best for | Brand | Price | Link |
|---|---|---|---|---|---|
| 1 | Generac 22kW Whole Home Generator | Editor's Choice | Generac | $6506.1 | Check |
| 2 | Westinghouse 14500 Peak Watt Tri-Fuel Home Backup… | Best for Daily Use | Westinghouse Outdoor Power Equipment | $1499 | Check |
| 3 | Westinghouse 12500 Watt Dual Fuel Home Backup Portable… | Best Splurge | Westinghouse | $999 | Check |
| 4 | Generac 22kW Whole Home Generator | Best for Beginners | Generac | $5570.1 | Check |
| 5 | Generac 24kW Whole Home Generator | Best Premium | Generac | $6875.1 | Check |
| 6 | DuroStar DS13000MX 13,000-Watt 500cc Dual Fuel Portable… | Best Heavy-Duty | DuroStar | $899 | Check |
| 7 | Generac 14kW Whole Home Generator | Best for Small Spaces | 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 trusted sources like product specifications on manufacturer websites and customer reviews. This helped us understand the features and capabilities of various whole house generators.
How we built this shortlist
Our shortlist includes models that stood out based on performance, customer feedback, and features. We looked at over 30 different generators and selected only those that met our criteria for reliability and power output.
What we ruled out and why
We eliminated products that had poor customer ratings or lacked essential features. Any generator without automatic startup was also removed, as that is a key factor for many buyers.
What we did not do
We did not test any generators ourselves. No measurements were taken, and we did not create any scores. All insights are based on data from reliable sources.
How often this page is updated
This page will be updated every 3-6 months. We will review new models, check for changes in specifications, and ensure the information is accurate.
What to look for
Power Output
Power output is essential when choosing a whole house generator. You need enough output to run your home’s appliances and systems during an outage. A generator should have at least 5,000 watts for smaller homes. Larger homes may need 10,000 watts or more.
Fuel Type
Different generators use various fuel types. Most common are gasoline, propane, and natural gas. Gasoline generators typically offer the highest power output, while propane is cleaner and has a longer shelf life. Consider your local fuel availability when choosing.
Automatic Start
Automatic start generators are very convenient. They sense a power outage and start running without you needing to do anything. This feature is essential for homes that need immediate power during outages.
Transfer Switch
A transfer switch allows you to safely connect the generator to your home’s electrical system. This is important for protecting both your generator and home from overload. Make sure your chosen generator is compatible with a transfer switch.
Size and Portability
Some generators are designed to be portable, while others are built for permanent installation. If you want a backup for a small home or RV, a portable generator may be best. Larger, stationary models typically provide more power but are less mobile.
How to Choose Whole House Generators
Determine Your Power Needs
Start by calculating how much power you need. List the essential appliances you want to run during an outage. Sum their wattage to find your total needs. This will help you choose a generator with the right power output.
Consider Fuel Availability
Check what fuel types are easily available in your area. If gasoline is common, a gasoline generator can be a good choice. If propane is easier to find, consider a dual-fuel generator for flexibility.
Look for Automatic Features
Choose a generator with an automatic start feature if you want hassle-free operation. This feature will automatically kick in during an outage, providing confidence and convenience.
Check for Safety Features
Safety features are important in generators. Look for models with circuit breakers and overload protection. These features help prevent damage to the generator and your home during power surges.
Review Installation Requirements
Different generators have different installation needs. Some require professional installation, while others can be set up easily by homeowners. Check the requirements to avoid surprises when buying.
Frequently asked questions
Is a whole house generator worth it?
Yes, a whole house generator is worth it for homes that face frequent power outages. It provides reliable backup power, keeping your home’s essential systems running smoothly.
How long can a whole house generator run?
Most generators can run for several hours to days, depending on fuel supply and load. Check the model specs for exact run time.
Do I need a transfer switch for a whole house generator?
Yes, a transfer switch is necessary. It safely connects the generator to your home’s electrical system, preventing backfeeding into the grid.
Can I use a whole house generator for commercial use?
Yes, some whole house generators are powerful enough for commercial use. Make sure to choose a model with adequate wattage for your business needs.
What maintenance does a whole house generator need?
Regular maintenance includes checking oil levels, replacing filters, and running the generator monthly. This helps ensure it runs smoothly during an outage.
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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