Best Whole House Electric Generators for Reliable Backup Power
When the power goes out, having a reliable whole house electric generator ensures your home stays powered and comfortable. These powerful generators offer various fuel options and high wattage to keep essential appliances running during outages. Below is a summary table featuring the top portable and standby generators designed for whole home backup, highlighting key features and fuel capabilities to help you choose the best fit.
| Product | Fuel Type | Peak Watts | Running Watts | Electric Start | Transfer Switch Ready |
|---|---|---|---|---|---|
| DuroMax XP13000EH Dual Fuel | Gas & Propane | 13,000 | Not Specified | Yes | Yes |
| Westinghouse 14500 Peak Tri-Fuel | Gas, Propane, Natural Gas | 14,500 (Gas) | 11,500 (Gas) | Remote Electric | Yes |
| Westinghouse 28000 Peak Gas Powered | Gasoline | 28,000 | 20,000 | Remote Electric | Yes |
| Generac Guardian 24kW Standby | Gasoline | 24,000 | Not Specified | Automatic | Yes |
| DuroStar DS13000MX Dual Fuel | Gas & Propane | 13,000 | Not Specified | Remote Electric | Yes |
DuroMax XP13000EH 13,000-Watt Dual Fuel Generator

The DuroMax XP13000EH provides 13,000 watts of power capable of running a whole house backup during storms or outages. Its dual fuel setup allows you to switch between gasoline and propane, enhancing flexibility for fuel availability. Known for reliability, it features a robust DuroMax engine designed to deliver long-lasting power. The generator is transfer switch ready, making it easy to integrate with your home’s electrical system. This portable unit also supports RV and emergency use and features an electric start for effortless operation.
Westinghouse 14500 Peak Watt Tri-Fuel Generator

This generator offers versatility with tri-fuel capability: gasoline, propane, and natural gas. Its peak output reaches 14,500 watts on gasoline, delivering reliable power for larger homes. Equipped with a heavy-duty 550cc 4-stroke OHV engine and a 9.5-gallon fuel tank, it runs up to 19 hours at partial load, supporting extended use. The built-in fuel gauge adds convenience, and the unit comes transfer switch ready with a remote electric start. Ideal for emergency situations, it balances portable flexibility and robust whole home power.
Westinghouse 28000 Peak Watt Gas-Powered Generator

The powerhouse Westinghouse 28,000 peak watt model excels in whole house backup power. Boasting a 999cc V-Twin OHV engine and a 17-gallon fuel tank, it provides up to 17 hours of run time at 25% load. Safety features include automatic low oil and CO shutdown, summer idle control, and multiple outlet types including GFCI-protected household sockets and 120/240V outlets. Remote electric start and battery charging port improve ease of use. This generator is suited for heavy-duty residential or job site demands.
Generac Guardian 24kW Home Standby Generator

The Generac Guardian 24kW is a durable, automatic standby generator designed for seamless whole house power backup. It comes with a 200 Amp transfer switch enclosed in an aluminum case for outdoor durability. With Wi-Fi enabled mobile monitoring, you can check performance and maintenance alerts remotely. The automatic start system activates during outages for uninterrupted power supply. Backed with a 5-year warranty, it offers long-term reliability and convenience for homeowners seeking a permanent backup solution.
DuroStar DS13000MX 13,000-Watt Dual Fuel Generator

The DuroStar DS13000MX delivers a dependable 13,000 watts for whole home power backup. Dual fuel technology enables running on gasoline for max power or propane for cleaner emissions and longer run time. A notable safety feature is the advanced carbon monoxide alert system that shuts off the generator if CO levels rise. The remote electric start enhances usability, and transfer switch readiness facilitates integration with home circuitry. Suitable for emergencies or job sites, it offers a balance of power and safety.
Buying Guide: Key Considerations for Selecting Whole House Generators
Choosing the right whole house generator involves balancing power output, fuel type, runtime, and safety features to meet your household’s needs.
Power Output and Capacity
The generator’s wattage determines how many appliances you can run simultaneously. Calculate total wattage of essential home circuits and select a generator with a peak wattage capability exceeding that demand for efficient performance.
Fuel Type Options
Generators commonly run on gasoline, propane, or natural gas. Dual or tri-fuel models add flexibility, allowing fuel source switching based on availability and cost. Natural gas and propane generally burn cleaner and provide longer storage life compared to gasoline.
Runtime and Fuel Tank Size
Look for generators offering long run times per tank, especially during extended outages. Larger fuel tanks or compatibility with external fuel sources support longer continuous operation without refueling.
Start Mechanism and Controls
Remote electric start and automatic start features increase convenience and safety, allowing the generator to activate without manual intervention, important during emergencies or inclement weather.
Transfer Switch Compatibility
A generator that is “transfer switch ready” simplifies connection to your home’s electrical panel via a transfer switch, ensuring safe power delivery and preventing backfeed into the grid.
Safety Features
Important safety features include low oil shutdown, carbon monoxide detection, and GFCI outlets to protect against electrical hazards.
Portability vs. Standby Models
Portable generators provide flexibility but generally require manual setup and fueling. Standby generators are permanently installed, provide automatic power restoration, and are better suited for continuous home protection.