Generac 22kW review
Generac 22kW Whole Home Standby Generator with 200-Amp Transfer Switch (7325)
By Tom Calder
Twenty-two kilowatts with a 200-amp transfer switch. On its listed rating it clears DTE Energy's 18,000-watt starting figure for a 3-ton central air conditioner with about 4,000 watts to spare for the fridge, lights and other loads running at the same time. The listing adds oil level sensors and cold-weather starting features, and like the rest of the range it starts itself within seconds of an outage on propane or natural gas.
- Best for
- A whole home with central air
- Skip it if
- You don't need central air in an outage
as of Nov 14, 2026, 5:36 PM ET · Details
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com at the time of purchase will apply to the purchase of this product.We earn a commission if you buy through the retailer links on this page. It doesn't change our verdict. How we make money →
Researched, not used. We haven't used this product. This review is built from the maker's specifications, owner reports and our own sizing.
What we like
- Headroom to start a 3-ton central air conditioner
- 200-amp transfer switch included
- Oil level sensors and cold-start support
Worth knowing
- 451 lb: a pad, gas line and licensed install are part of the cost
- Overkill if you only need the essentials
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Who shouldn't buy this
Don't buy it if you don't need central air in an outage: the 14 kW covers the essentials for less.
Key specs
| Rated output (listing) | 22,000 W |
| Transfer switch | 200 amp, included |
| Fuel | Propane (LP) or natural gas |
| Weight | 451 lb |
| Warranty | 5-year limited |
This is a Researched review: we haven't used this product. We check every specification against at least two independent sources, re-check the US price on a schedule where we can track it automatically, and say plainly who it isn't for. Commissions never change a rating.
If this isn’t the one
Best for 22 kW standby with Wi-Fi monitoring
as of Nov 14, 2026, 5:36 PM ET · Details
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com at the time of purchase will apply to the purchase of this product.
Best for Whole-house standby, 10-year warranty
as of Nov 14, 2026, 5:36 PM ET · Details
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.com at the time of purchase will apply to the purchase of this product.
Best for A large home that wants a second brand besides Generac at the 26 kW size