Best Natural-Gas Backup Generators (2026)
Generators that can run on piped natural gas, for long outages without refueling.
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- 1CMost power
Champion 26 kW Whole House Home Standby Generator and 200A Switch with fleX Technology (201614)
Score is within our home standby & large portable generators ranking8.1/1023,400 W on natural gas, 200A switch.
What we like
- Top running watts (best listed fuel) in this comparison (26000 W)
Watch out for
- Runtime at 50% load (gasoline) not published by Champion
- 2CMid-size standby
Champion 14 kW Whole House Home Standby Generator and 200A Switch with aXis Technology (100839)
Score is within our home standby & large portable generators ranking6.1/1012,500 W on natural gas, 62 dB(A).
What we like
Watch out for
- Runtime at 50% load (gasoline) not published by Champion
- 3CTri-fuel portable
Champion 13,500W Electric Start Tri Fuel Generator (201241)
Score is within our home standby & large portable generators ranking5.1/1011,000 W on natural gas, CO Shield.
What we like
Watch out for
- 4FTri-fuel inverter
FIRMAN WT12579
Score is within our home standby & large portable generators ranking4.9/107,500 W on natural gas, 69 dB.
What we like
Watch out for
- Runtime at 50% load (gasoline) not published by Firman
What to look for
Check your gas meter
Large generators need enough gas supply and pipe size. Your installer should confirm meter capacity.