Best Tri-Fuel Home Backup Portable Generator (2026): 4 Picks Compared

Westinghouse lists a 28000 peak watt tri-fuel home backup portable generator with 20,000 running watts on gasoline, a 999cc engine and less than 5% THD for phones, computers and TVs. Push-button and remote start simplify startup, a 17.2-gallon gas tank supports extended operation, and 50A and 30A outlets pair with a manual transfer switch or the Westinghouse WATS200 ATS system, sold separately. A CO sensor shuts down the generator when elevated carbon monoxide is detected, automatic low-oil shutdown protects the engine, and the spec table lists 557.0 Pounds with dimensions of 38.0 inches x 35.0 inches x 40.4 inches. The listing states a 3-year limited residential warranty and lifetime technical support.

Who it is for: homeowners who want the largest running watts here with automatic backup pairing. Who should skip it: buyers who need a stated run time or a lighter unit.

Its Solar Score of 9.7/10 comes from performance 32/35, build 21/25, value 22/25, safety 7/10 and warranty 4/5: 86 of 100 points, placed on our 9.2 to 9.8 scale.

Figures as published on the retailer listing, collected 3 November 2026. Performance figures are manufacturer rated.

What this listing states. CO sensor and automatic low-oil shutdown, so safety scores 7 of 10. 3 Year Limited Warranty. It does not say everything a buyer needs, such as who pays return shipping, so warranty scores 4 of 5. See How We Pick.

Follow the manual. Connect and use the product as the maker describes, stay within every stated rating, and read the manual before first use.

This is general buying information, not professional advice. Follow each product manual and local rules, and see our Safety Disclaimer.

Westinghouse lists a 12500 peak watt EFI tri-fuel home backup portable generator with 9,500 running watts on gasoline, 11,200 peak watts and 8,500 running watts on propane, and 9,500 peak watts and 7,500 running watts on natural gas. Electronic fuel injection starts the generator with no choke or carburetor to hassle with, and it runs for up to 15 hours on a 6.6 gal fuel tank with a built-in gauge. One 120/240V 14-50R 50A outlet and one 120/240V L14-30R 30A twist lock are transfer switch ready for home backup, with two GFCI 120V 5-20R 20A duplex household outlets included. A CO sensor and automatic low oil shutdown cover safety, the 457cc engine has a durable cast iron sleeve, and the listing states a 3-year limited warranty with CARB compliance in all 50 states.

Who it is for: homeowners who want EFI starting and three-fuel flexibility with a stated run time. Who should skip it: buyers who need the largest running watts or a stated weight.

Its Solar Score of 9.7/10 comes from performance 30/35, build 21/25, value 21/25, safety 7/10 and warranty 4/5: 83 of 100 points, placed on our 9.2 to 9.8 scale.

Figures as published on the retailer listing, collected 3 November 2026. Performance figures are manufacturer rated.

What this listing states. CO sensor and CARB compliance, so safety scores 7 of 10. 3 Year Limited Warranty. It does not say everything a buyer needs, such as who pays return shipping, so warranty scores 4 of 5. See How We Pick.

Follow the manual. Connect and use the product as the maker describes, stay within every stated rating, and read the manual before first use.

This is general buying information, not professional advice. Follow each product manual and local rules, and see our Safety Disclaimer.

The bullets state a 3-year residential / 2-year commercial limited warranty, while the spec table says 8 Year Limited. The bullets win over the spec table, so compare on the 3-year residential / 2-year commercial terms. The spec table also lists PartNumber G0080632 against Model G0080631, a second mismatch inside the listing. The listing states a 500cc engine, automatic voltage regulation, COsense shutdown, a 7.5-gallon fuel tank, and a digital hour meter.

Who it's for: buyers who want three fuel options with automatic voltage regulation and COsense shutdown. Who should skip it: buyers who need stated propane or natural gas watts, or a remote key fob.

Its Solar Score of 9.7/10 comes from performance 30/35, build 21/25, value 21/25, safety 8/10 and warranty 3/5: 83 of 100 points, placed on our 9.2 to 9.8 scale.

Figures as published on the retailer listing, collected 3 November 2026. Performance figures are manufacturer rated.

What this listing states. COsense CO detection shutdown and automatic voltage regulation stated, so safety scores 8 of 10. 3-year residential / 2-year commercial limited warranty stated. It does not say everything a buyer needs, such as who pays return shipping, so warranty scores 3 of 5. See How We Pick.

Follow the manual. Connect and use the product as the maker describes, stay within every stated rating, and read the manual before first use.

This is general buying information, not professional advice. Follow each product manual and local rules, and see our Safety Disclaimer.

GENMAX lists a 15000W tri-fuel portable generator with 11000 running watts and a 10.56 gal fuel tank for household electrical requirements. Tri-fuel compatibility covers gasoline, LPG and natural gas, and three start options cover one-button start, remote start and recoil start. A multifunctional digital display presents real-time operational data, a voltage transfer switch switches between 120V and 240V with full power at 120V, and a built-in CO detection function prioritizes safety. An LED flexible rope light stays lit for 30 seconds when the main switch is turned on, and the spec table lists 242.5 pounds with dimensions of 31.57 inches x 27.95 inches x 28.66 inches. The listing states a 3-year warranty with lifetime technical support.

Who it is for: buyers who want a large tri-fuel generator with three start options and a digital display. Who should skip it: buyers who need a stated run time or a named transfer switch model.

Its Solar Score of 9.6/10 comes from performance 29/35, build 20/25, value 20/25, safety 7/10 and warranty 4/5: 80 of 100 points, placed on our 9.2 to 9.8 scale.

Figures as published on the retailer listing, collected 3 November 2026. Performance figures are manufacturer rated.

What this listing states. CO detection function, so safety scores 7 of 10. 3 year. It does not say everything a buyer needs, such as who pays return shipping, so warranty scores 4 of 5. See How We Pick.

Follow the manual. Connect and use the product as the maker describes, stay within every stated rating, and read the manual before first use.

This is general buying information, not professional advice. Follow each product manual and local rules, and see our Safety Disclaimer.