Contents
- The Top 8
- Top 8 Whole House Generators Reviewed in Detail
- 1. Top Pick
- 2. Best Premium
- 3. Best Splurge
- 4. Best for Small Spaces
- 5. Most Versatile
- 6. Best for Beginners
- 7. Best Lightweight
- 8. Runner-Up
- Whole House Generators Compared Side by Side
- How We Reviewed
- How to Choose Whole House Generators
- What to look for
- Frequently asked questions
Choosing a generator can be tough. This whole house generator buying guide helps you decide. The top pick is the Generac 22kW Whole Home Generator. It has automatic outage detection, ensuring your home remains powered. The value pick is the Westinghouse 12500 Watt Dual Fuel Generator, which is less powerful but offers portability. You sacrifice some wattage for a lower price, making it a good choice for smaller needs.
Most buyers face the choice between a fixed unit and a portable generator. The fixed unit offers standby power, while the portable option provides flexibility. The rest of this page gives you detailed comparisons and key factors to consider.
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The Top 8
Top 8 Whole House Generators Reviewed in Detail
Below is a comparison of the top whole house generators. Each product has unique features to help you power your home.
1. Top Pick
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 provides dependable power during outages. It automatically detects power loss and starts up quickly. You get confidence knowing your home stays powered. It includes a transfer switch for easy connection.
Pros
Automatic start during outages. Reliable power output. Includes a transfer switch.
Cons
Installation may require professional help. It is larger than portable options.
This generator suits larger homes needing consistent power. It works well for families who prioritize comfort.
The Generac 22kW is an excellent choice for whole home power backup.
2. Best Premium
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
Westinghouse 14500 Peak Watt Tri-Fuel Generator offers flexibility with fuel options. You can use gasoline, propane, or natural gas. The remote electric start makes it easy to operate. It has a strong engine for reliable performance.
Pros
Tri-fuel capability allows fuel choice. Remote start for convenience. Suitable for larger homes.
Cons
It may be too powerful for smaller homes. Noise levels can be higher than expected.
This generator is best for users needing backup power at home or on the go. It suits those who use multiple fuel types.
The Westinghouse tri-fuel generator is great for versatility and power.
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 offers solid performance. It supports both gasoline and propane. The remote start adds convenience. It has a decent run time for home backup.
Pros
Dual fuel capability gives flexibility. Remote start makes it user-friendly. Good power output for home use.
Cons
It may not handle high power demands during peak times. Some users report it can be noisy.
This generator works well for average-sized homes needing reliable backup. It is a good choice for users who want dual fuel options.
The Westinghouse 12500 Watt Dual Fuel Generator is a reliable choice.
4. Best for Small Spaces
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 22kW Whole Home Generator provides full home protection. It automatically detects outages and powers your home quickly. This model focuses on keeping your home comfortable during outages.
Pros
Fast response to power loss. Complete power for homes. Easy installation with a transfer switch.
Cons
More expensive than smaller options. Requires a larger space for installation.
Ideal for families in areas prone to outages. This generator suits those wanting maximum reliability.
The Generac 22kW offers excellent home protection during power outages.
5. Most Versatile
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
Generac 24kW Whole Home Generator is another strong choice. It automatically starts during outages and connects easily. This model is designed for larger homes needing strong backup.
Pros
Strong power output for large homes. Automatic power restoration. Includes cellular capability for monitoring.
Cons
Higher upfront cost. Space requirements can be significant.
This generator fits families seeking dependable power and comfort. It works well for homes needing constant power.
The Generac 24kW is a great option for whole home power 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.
DuroStar DS13000MX is a versatile dual fuel generator. It can run on gasoline or propane, giving you options. The remote start feature adds ease of use. It is well-built for durability.
Pros
Dual fuel technology for flexibility. Reliable power output. Good for home or job site use.
Cons
Power might not be sufficient for very large homes. It can be heavy to move around.
This generator suits users wanting portability and power. It works for home backup and outdoor use.
The DuroStar DS13000MX is a solid choice for those needing flexibility.
7. Best Lightweight
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.
Generac 14kW Whole Home Generator offers reliable power during outages. It automatically detects power loss and starts quickly. This generator is designed for smaller homes.
Pros
Quick response to outages. Reliable home power. Compact design for smaller spaces.
Cons
Lower power output may not suit larger homes. Limited features compared to larger models.
Ideal for smaller homes or those needing backup power for essentials. Good for families wanting reliable options.
The Generac 14kW is a dependable backup for smaller homes.
8. Runner-Up
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
Generac 26kW Whole Home Generator provides substantial power. It automatically detects outages and delivers backup power fast. This model is excellent for large homes needing constant electricity.
Pros
High power capacity for large homes. Automatic start during outages. Includes cellular monitoring.
Cons
Requires significant installation space. Higher initial investment compared to smaller generators.
This generator suits large families needing uninterrupted power. Great for homes in storm-prone areas.
The Generac 26kW is an excellent option for maximum power reliability.
Whole House Generators Compared Side by Side
The table below shows key specifications for each generator. It includes power output, fuel type, and design details. Use the whole house generator buying guide to find the best option for your needs.
| # | Product | Best for | Brand | Price | Link |
|---|---|---|---|---|---|
| 1 | Generac 22kW Whole Home Generator | Top Pick | Generac | $6506.1 | Check |
| 2 | Westinghouse 14500 Peak Watt Tri-Fuel Home Backup… | Best Premium | 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 Small Spaces | Generac | $5570.1 | Check |
| 5 | Generac 24kW Whole Home Generator | Most Versatile | 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 | Best Lightweight | Generac | $5255 | Check |
| 8 | Generac 26kW Whole Home Generator | Runner-Up | 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 information from trusted sources. These include product specifications on manufacturer websites and customer reviews from major retailers. This approach ensures accurate and up-to-date details about each generator.
How we built this shortlist
We started with over 20 whole house generators. We filtered them based on key specs like power output, fuel type, and customer ratings. We focused on models with the best reviews and features that meet common needs.
What we ruled out and why
Models that did not meet minimum power outputs were excluded. We also removed generators with poor customer ratings or lacking essential features like automatic start mechanisms. This helped focus on the most reliable options.
What we did not do
None of the products were tested by hand or had lab measurements taken. We did not create scores or ratings based on personal use. This ensures our recommendations are based on verifiable data.
How often this page is updated
We review and update this page regularly. Changes in model availability and new product releases will trigger updates. Expect information to be refreshed every few months to maintain accuracy.
How to Choose Whole House Generators
Power Output Requirements
Look at the total wattage you need. For larger homes, consider generators that provide at least 22kW. This ensures enough power for essential appliances during outages. Calculate the wattage of your most important devices to find the right match.
Fuel Types Available
Generators can use different fuel types, such as gasoline, propane, or natural gas. Dual fuel generators, like the Westinghouse 12500 Watt, give you flexibility. Choose a model based on fuel availability in your area and your preference for efficiency.
Automatic Start Features
Automatic start features are important for whole house generators. They detect power outages and start up without manual input. Look for models that provide this convenience for confidence during unexpected outages.
Size and Portability
Consider where you will place your generator. Larger units like the Generac 24kW need more space but offer more power. If portability is a priority, choose smaller, lighter models that can be moved easily.
Noise Levels
Noise levels can be a concern with some generators. Check the decibel ratings of models you consider. Quieter generators will be more comfortable during use, especially in residential areas. Aim for models advertised as silent or low-noise.
What to look for
Power Types
Generators often come in gasoline, propane, or dual fuel options. Dual fuel generators can run on gasoline or propane, giving you flexibility in fuel choice. Gasoline offers maximum power, while propane provides longer run times and cleaner emissions.
Power Output
Power output is important for whole house generators. You’ll want a generator that provides enough wattage for your needs. A higher output is better for larger homes with many appliances running simultaneously. Look for at least 14kW for whole house coverage.
Automatic Start
Automatic start features let generators turn on themselves during outages. This provides immediate power without manual effort. Look for this feature in any whole house generator you consider, as it ensures comfort and safety when you need power.
Size and Weight
The size and weight of a generator matter for installation. Larger models require more space and may be harder to install. If portability is important, focus on lighter, smaller generators that are easier to move.
Noise Level
Noise levels vary among generator models. Quieter generators are more pleasant to operate, especially in residential areas. Look for models with lower decibel ratings for a more comfortable experience during use.
Frequently asked questions
What is a whole house generator?
A whole house generator provides backup power for your entire home during outages. It automatically detects when power fails and starts up to keep your essential appliances running.
How does a whole house generator work?
When the power goes out, a whole house generator starts automatically. It uses fuel, like gasoline or propane, to create electricity. This keeps your lights, heating, and appliances running until the main power returns.
Do I need a transfer switch?
Yes, a transfer switch is necessary for safety. It connects the generator to your home’s electrical system. This prevents backfeeding into the grid, which can be dangerous for utility workers and your home.
How long can a whole house generator run?
The run time depends on the fuel type and size of the generator. Most can run for several hours to over a day, depending on the load and fuel tank size.
Are whole house generators noisy?
Noise levels vary by model, but many are designed to be quieter than older generators. Check the decibel rating of each generator to find a quieter option that suits your needs.
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 safe pest control U.S. Environmental Protection Agency
- USDA plant hardiness zones USDA Agricultural Research Service
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