Portable and inverter generators

Portable generators give the most power for the money in a long outage, for households that can store fuel and run one safely outdoors.

Compare side by side

Portable and inverter generators compared. Best in each row is shaded, bold and ticked
Specification Best overall Generac GP8000E Portable Generator with COsense Best budget Westinghouse iGen2200c Inverter Generator with CO Sensor Best inverter Champion 4500W Electric Start Dual Fuel Inverter with CO Shield Best dual fuel Westinghouse WGen9500DFc Dual Fuel Generator with CO Sensor Best tri-fuel DuroMax XP13000HXT Tri-Fuel Portable Generator with CO Alert
Our score Our score: 8.0 out of 10 Our score: 7.4 out of 10 Our score: 8.1 out of 10 Our score: 7.9 out of 10 Our score: 8.1 out of 10
Running watts 8,000 W 1,800 W 3,500 W 9,500 W 10,500 W(best in this row)
Starting watts 10,000 W 2,200 W 4,500 W 12,500 W 13,000 W(best in this row)
Fuel Gasoline Gasoline Gasoline or propane Gasoline or propane Gasoline, propane or natural gas
CO shutoff Yes Yes Yes Yes Yes
Largest outlet 120/240 V 30 A (L14-30R) 120 V 20 A only 120 V 30 A (TT-30R) 120/240 V 50 A (14-50R) 120/240 V 50 A (14-50R)
Runtime at 25% load not listed 12 h 14 h 12 h 17 h(best in this row)
Noise (maker's rating) not listed 52 dB(A)(best in this row) 61 dB(A) 74 dB(A) 74 dB(A)
Weight 198 lb 47.4 lb 99.2 lb not listed 246 lb
Where to buy

Before you buy

  • Match watts to your list Check running watts against what must run together, and starting watts against the biggest motor. The load worksheet helps.
  • Check the furnace Many high-efficiency furnaces need clean, stable power. An inverter generator, or a model the furnace maker approves, avoids nuisance shutdowns.
  • Choose fuel you can store Gas goes stale; propane keeps. Dual-fuel models let you switch when the stations are closed.

Need a standby generator or transfer switch installed?

Pick the job, then your city.

We don’t store what you type.

See every trade we list

Portable generator questions

Why buy a generator with a CO shut-off?

The US CPSC counts nearly 100 deaths a year in the US from portable generator carbon monoxide and advises buying models with a CO shut-off. Health Canada says the same, and adds that a shut-off never makes indoor use safe or replaces CO alarms. Every model we list has a CO shut-off stated by its maker.

Can I run a generator in the garage or under a porch roof?

No. Health Canada says never in a garage or shed, even with the door open. The US CPSC adds porches and carports, and says opening windows is not enough. Keep it at least 6 m (20 ft) from the house with the exhaust pointed away.

What about running a generator in rain or snow?

Follow the maker’s instructions. The CPSC says these may call for a noncombustible generator tent rated by NFPA, or for waiting until the weather passes. Never move it indoors or into a garage to keep it dry.