Best overall
Generac GP8000E Portable Generator with COsense
8,000 W with COsense, L14-30R and a CSA version for Canada
Portable generators give the most power for the money in a long outage, for households that can store fuel and run one safely outdoors.
Used for: Backup power for your home
Best overall
8,000 W with COsense, L14-30R and a CSA version for Canada
Best budget
Light 1,800 W inverter with CO shutdown for the basics
Best inverter
Quiet dual-fuel inverter, CO Shield, stated PGMA G300-2018
| 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 $1,499–$2,199 |
|---|---|---|---|---|---|
| Our score | Our score: 8.0/10 out of 10 | Our score: 7.4/10 out of 10 | Our score: 8.1/10 out of 10 | Our score: 7.9/10 out of 10 | Our score: 8.1/10 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 |
US retailers |
US retailers |
US retailers |
US retailers |
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Best-of
Five portable generators with CO shut-off for winter outages, ranked for Canadian homes: size, safe hookup, fuel and the Canadian mark.
Buying guide
A fill-in load worksheet for sizing a generator from your own nameplates: running vs starting watts, 240 V, furnaces, and portable vs standby vs battery.
Comparison
Silent and indoor-safe, or energy for days: how a 1 kWh power station and a 4,500 W dual fuel inverter compare through a real outage.
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.
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.
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.