Contents
- The Top 8
- Top 8 Whole House Generators Reviewed in Detail
- 1. Top Pick
- 2. Best Lightweight
- 3. Best for Daily Use
- 4. Best Compact
- 5. Best for Beginners
- 6. Best Budget
- 7. Best Premium
- 8. Best Design
- Whole House Generators Compared Side by Side
- How to Choose Whole House Generators
- How We Reviewed
- Frequently asked questions
- What to look for
The best whole house generator brands can make a big difference in your home during power outages. The top pick is the Generac 22kW Whole Home Generator. It provides whole house protection and automatically detects outages. The value pick is the Westinghouse 14500 Peak Watt Tri-Fuel Generator. It offers flexibility with its tri-fuel capability but has lower peak wattage.
Most buyers face a choice between a higher wattage for larger homes and a more portable option for quick use. This guide will help you understand the features and specs of the best whole house generator brands available today.
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The Top 8
Top 8 Whole House Generators Reviewed in Detail
This article highlights some of the best whole house generator brands available in the market. Each one offers unique features to suit different needs.
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 is an exceptional choice. It provides automatic power to your home during outages. With 22,000 watts, it can support multiple heavy appliances at once. This model stands out due to its reliability and sturdy power output.
Compared to other models like the Westinghouse 14500 Peak Watt Tri-Fuel Generator, the Generac offers more power for larger homes. While the Westinghouse is versatile with tri-fuel options, it falls short in maximum wattage. The Generac’s ability to detect outages automatically is another significant advantage.
One limitation is that its installation can be complex and may require professional help. This may not suit everyone, especially those looking for a simpler, portable solution.
Pros
- Automatic outage detection
- 22,000 watts of peak power
- Supports multiple heavy appliances
- Reliable brand reputation
Cons
- Requires professional installation
- Higher upfront cost
- May be too much power for smaller homes
Best for: Larger homes needing reliable power.
Not ideal for: Smaller spaces or those on a tight budget.
This generator is best for those needing consistent, high power during outages.
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 solid lightweight choice. With 14,500 peak watts, it offers excellent power for various home needs. The tri-fuel capability allows it to run on gasoline, propane, or natural gas, making it versatile for different situations.
In comparison with the Generac models, this Westinghouse generator provides more flexibility in fuel types. However, it has a lower peak wattage, which may limit its ability to power multiple heavy appliances simultaneously. This generator also includes a remote start feature, which adds convenience.
A downside is that the lower wattage may not be sufficient for larger homes with several high-demand appliances. Buyers needing maximum power should consider the Generac options instead.
Pros
- Tri-fuel capability for flexibility
- Lightweight and portable design
- Remote electric start feature
- Good for temporary backup power
Cons
- Lower peak wattage than competitors
- Not suitable for large homes
- Limited power for multiple appliances
Best for: Smaller homes or temporary use.
Not ideal for: Larger homes needing high power.
A versatile and portable option for those needing flexible power sources.
3. Best for Daily Use
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 a strong contender for daily use. With 12,500 peak watts and dual fuel capability, it can run on both gasoline and propane. This flexibility makes it suitable for various power needs around the home or job site.
When compared to the Westinghouse 14500, this model offers higher running watts. This makes it more suitable for larger appliances and longer use during outages. Its remote start feature adds convenience, allowing users to start the generator from a distance.
However, it lacks the higher peak output of larger models like the Generac 22kW. Users requiring consistent, high power may find this a limitation, especially if they have many power-hungry devices.
Pros
- 12,500 watts peak power
- Dual fuel capability
- Remote start feature
- Up to 12 hours run time
Cons
- Lower peak power than larger models
- Not as portable as smaller units
- May require frequent refueling
Best for: Daily home use and longer outages.
Not ideal for: Users needing higher peak wattage.
A reliable choice for those needing steady power for daily home use.
4. Best Compact
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 (cellular capability) is another strong pick for home power. It provides automatic power during outages, similar to other Generac models. This version includes cellular features for remote monitoring and alerts, adding convenience and confidence.
Compared to the non-cellular Generac, this model offers enhanced connectivity. Users can track performance and get notifications about maintenance needs via their smartphones. It shares the same high wattage capabilities, making it suitable for large homes.
A notable limitation is that the added cellular features may not appeal to everyone. Users who prefer simpler functionality might opt for other models without this tech emphasis.
Pros
- High 22,000 watts peak power
- Automatic operation during outages
- Remote monitoring capabilities
- Reliable brand with strong reputation
Cons
- Requires professional installation
- Higher initial investment
- Cellular features may not be necessary for all
Best for: Users wanting advanced monitoring features.
Not ideal for: Those who prefer simpler models.
This model offers excellent power along with smart features for modern homes.
5. Best for Beginners
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 a powerhouse with impressive specifications. It provides automatic backup power to your home and features a sturdy design. Its high wattage of 24,000 peak watts makes it suitable for large households with multiple heavy appliances.
In comparison to the previous Generac models, this one has a higher wattage, making it more capable for demanding power needs. It also shares similar automatic detection features, ensuring you remain powered during outages. This ensures minimal disruption to daily life.
The main drawback is that it may not be the best fit for smaller homes or those on a budget. Its high power output might be more than necessary for average users, making it less versatile for smaller applications.
Pros
- 24,000 watts peak power
- Automatic operation during outages
- Suitable for large households
- Reliable brand with strong reputation
Cons
- High upfront cost
- Complex installation requirement
- May be overkill for smaller homes
Best for: Large homes with multiple power needs.
Not ideal for: Smaller houses or users on a budget.
A powerful choice for those needing significant backup power in large homes.
6. Best Budget
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 DuroStar DS13000MX is a strong budget-friendly option. With 13,000 watts peak power, it provides sufficient backup for many household needs. This dual fuel generator can run on gasoline or propane, giving users flexibility depending on fuel availability.
Compared to more expensive models, it still offers substantial power. However, it lacks the higher wattages found in models like the Generac 22kW. The DuroStar is portable and can be moved easily, making it suitable for various locations.
One downside is that the lower wattage may not be enough for larger homes with high electricity demands. Users with multiple appliances may find it insufficient during peak times.
Pros
- 13,000 watts peak power
- Dual fuel flexibility
- Portable and easy to move
- Affordable option for budget-conscious users
Cons
- Lower power output compared to premium models
- Less suitable for large households
- May require frequent refueling
Best for: Budget-conscious users needing basic backup power.
Not ideal for: Large homes with high power needs.
A reliable and affordable choice for those needing backup power without breaking the bank.
7. Best Premium
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 14kW Whole Home Generator is a solid choice for premium power. With 14,000 watts, it automatically provides backup power during outages. This model maintains the trusted reliability of the Generac brand while offering high performance.
Compared with larger Generac models, this generator provides sufficient power for smaller households. It shares automatic detection features, ensuring smooth operation during outages. This makes it a reliable option for many users.
A limitation of this model is that it may not provide enough power for larger homes with multiple heavy appliances. If your home requires more wattage, consider larger options like the 22kW or 24kW Generac models.
Pros
- 14,000 watts peak power
- Automatic operation during outages
- Reputable brand with reliable performance
- Ideal for smaller households
Cons
- Not enough power for larger homes
- Higher cost than budget generators
- Complex installation may be required
Best for: Smaller homes needing reliable backup power.
Not ideal for: Large households requiring more wattage.
A dependable choice for those needing reliable power in smaller homes.
8. Best Design
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 26kW Whole Home Generator is an impressive design. With a peak output of 26,000 watts, it provides sturdy power for larger households. It features automatic backup and advanced monitoring for optimal performance during power outages.
Compared to other models, this one is the most powerful option available. It excels in providing sufficient wattage for high-demand appliances. The additional cellular capability allows for easier monitoring and alerts on performance.
However, the complexity of installation and higher cost may deter some buyers. This model may not be suitable for those who only need power for basic appliances.
Pros
- 26,000 watts peak power
- Automatic operation
- Advanced monitoring capabilities
- Ideal for high-demand households
Cons
- High installation complexity
- Very expensive compared to other options
- Excess capacity for smaller homes
Best for: Large homes with high power demands.
Not ideal for: Smaller homes or those with limited budgets.
A leading choice for those needing extensive backup power and advanced capabilities.
Whole House Generators Compared Side by Side
In this comparison table, you’ll see each generator’s key specifications, including power capacity, fuel type, and features. Those looking for the best whole house generator brands can focus on wattage and features that fit their 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 Lightweight | Westinghouse Outdoor Power Equipment | $1499 | Check |
| 3 | Westinghouse 12500 Watt Dual Fuel Home Backup Portable… | Best for Daily Use | Westinghouse | $999 | Check |
| 4 | Generac 22kW Whole Home Generator | Best Compact | Generac | $5570.1 | Check |
| 5 | Generac 24kW Whole Home Generator | Best for Beginners | Generac | $6875.1 | Check |
| 6 | DuroStar DS13000MX 13,000-Watt 500cc Dual Fuel Portable… | Best Budget | DuroStar | $899 | Check |
| 7 | Generac 14kW Whole Home Generator | Best Premium | Generac | $5255 | Check |
| 8 | Generac 26kW Whole Home Generator | Best Design | 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 to Choose Whole House Generators
Understanding Power Output
Look for generators with a peak wattage that matches your home’s needs. A good rule is 5,000-7,000 watts for smaller homes and 20,000 watts or more for larger homes. This ensures you can run essential appliances without issues.
Fuel Type Considerations
Consider a generator that uses multiple fuel types, such as gasoline, propane, and natural gas. Models with dual fuel capabilities, like the Westinghouse models, offer flexibility and easier refueling options during emergencies.
Transfer Switch Requirements
A transfer switch is necessary for safely connecting your generator to your home’s electrical system. Ensure the generator you choose is compatible with a transfer switch for smooth operation.
Noise Level
Generators can be noisy. Look for models with low decibel ratings if noise is a concern for you. A rating of 60 dB or lower is generally acceptable for residential areas.
Size and Portability
Consider the size of the generator and how you plan to use it. Portable units should be lightweight and easy to move, while larger home standby models need to be permanently installed.
How We Reviewed
Where our data comes from
Information was collected from manufacturers’ websites and customer reviews. We focused on product specifications, features, and user experiences.
How we built this shortlist
We reviewed over 25 whole house generators to find the best models. Our shortlist includes those with high customer ratings and essential features.
What we ruled out and why
Products lacking essential safety features or consistently poor reviews were removed. We focused only on reliable and well-reviewed generators.
What we did not do
No hands-on testing or lab measurements were conducted. We did not assign scores or ratings, relying solely on data from reputable sources.
How often this page is updated
This article will be updated quarterly to ensure all information remains current and accurate. Product availability and specifications can change frequently.
Frequently asked questions
What is the best whole house generator brand?
Generac is often considered the best whole house generator brand due to its reliable performance and range of capacities.
How much power do I need for a whole house generator?
Typically, a whole house generator needs between 5,000 to 20,000 watts based on the size of your home and essential appliances.
How long can a whole house generator run?
Most generators can run between 8 to 12 hours on a full tank, depending on the load and fuel type.
What fuel types can whole house generators use?
Many generators can use gasoline, propane, and natural gas. Dual fuel models provide extra flexibility.
Are whole house generators automatic?
Yes, many whole house generators, like those from Generac, can automatically detect power outages and start themselves.
What to look for
Power Capacity
Choosing the right power capacity is essential. Look for a generator with at least 20% more wattage than you think you need. This ensures you can run all necessary appliances during an outage without overloading the unit.
Installation Needs
Consider how the generator will be installed. Whole house generators may require professional installation, especially if they need a transfer switch. Always check local codes and regulations.
Maintenance Requirements
Regular maintenance is important for reliable performance. Some models require more maintenance than others, so consider ease of access when making your choice.
Warranty and Support
Look for brands that offer solid warranties and customer support. A warranty of three years or more is generally a good sign of reliability.
Additional Features
Some generators come with advanced features like remote start or mobile notifications for maintenance alerts. These can add convenience and safety.
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
About the author
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