For homes that want essentials backed up automatically at a low price and a long parts warranty.
Norwall $4,199Under $7,500 covers larger air-cooled units and entry liquid-cooled models, often in the 16 to 24 kW range. At this size a generator can carry most of a typical house, including central air conditioning, especially with load management that sheds big loads automatically.
Installation costs often match or exceed the unit price, so get quotes before choosing. Confirm that the gas supply and meter can feed the engine, that the transfer switch is rated for your service size, and what the noise level means for the neighbors. Compare the warranty length and whether a local dealer will service it.
Prices were last checked November 11, 2026. Product prices and availability are accurate as of that date and are subject to change; the price and availability shown on Amazon or the retailer's site at the time of purchase apply. As an Amazon Associate we earn from qualifying purchases.
Top Picks
For homes with central air that want whole-house backup for the least money and a long parts warranty.
Norwall $5,699For larger homes that want 26 kW in a rust-proof aluminum housing with the longest warranty in its class.
AP Electric $7,499Best Standby Generators Under $7,500: Under 15 kW
- Champion 12.5kW Home Standby#1 of 10Full review
For homes that want essentials backed up automatically at a low price and a long parts warranty.
Norwall $4,199$4,19912.5 kW11 kW63 dBA - Champion 14kW aXis#2 of 10Full review
For budget buyers who want a whole-house switch and a long warranty for essentials and a small air conditioner.
Norwall $4,999$4,99914 kW12.5 kW62 dBA - Champion 8.5kW Home Standby#3 of 10Full review
For small homes or cabins that need a few essential circuits backed up automatically on a tight budget.
Norwall $3,299$3,2998.5 kW7.5 kW59.5 dBA - Generac 10kW Standby 7321#4 of 10Full review
For smaller homes that only need the fridge, furnace, well pump and lights during an outage, at a low price.
Amazon $4,329$4,32910 kW9 kW61 dBA - Cummins Quiet Connect RS13A 13kW#5 of 10Full review
For homes on natural gas that want essentials covered by a quiet, well supported brand with monitoring included.
Norwall $5,384.39$5,384.3913 kW13 kW65 dBA - Generac 14kW Standby 7323#6 of 10Full review
For homes that want essentials and a small air conditioner covered, with Generac’s cellular monitoring.
Amazon $5,839$5,83914 kW14 kW65 dBA - Briggs & Stratton PowerProtect 13kW#7 of 10Full review
For buyers covering essentials who already have, or will buy, a separate transfer switch and want a long warranty.
Norwall $4,460$4,46013 kW11.5 kW69 dBA - Kohler 12RESVL 12kW#8 of 10Full review
For smaller homes that want a well pump or a small air conditioner on top of the essentials, with Kohler’s full-coverage warranty.
Norwall $4,728$4,72812 kW11 kW71 dBA - Kohler 14RCAL 14kW#9 of 10Full review
For homes that want essentials plus one air conditioner managed automatically, with a full parts and labor warranty.
Norwall $5,899$5,89914 kW12 kW69 dBA - Kohler 10RESVL 10kW#10 of 10Full review
For smaller homes that only need the fridge, furnace and lights backed up, on Kohler’s cheapest kit with its full-coverage warranty.
Norwall $4,288$4,28810 kW9 kW71 dBA
Best Standby Generators Under $7,500: 15 to 22 kW
- Champion 22kW aXis#1 of 9Full review
For homes with central air that want whole-house backup for the least money and a long parts warranty.
Norwall $5,699$5,69922 kW19.8 kW67 dBA - Champion 22kW fleX#2 of 9Full review
For coastal or wet climates that want Champion’s 22 kW and long warranty in a rust-proof aluminum housing.
Amazon $6,399$6,39922 kW19.8 kW67 dBA - Briggs & Stratton PowerProtect+ 22kW#3 of 9Full review
For homes with central air on natural gas that want full output, built-in monitoring and seven years of full cover.
Norwall $7,289 Signature Solar $7,289$7,28922 kW22 kW66 dBA - Cummins Quiet Connect RS20AC 20kW#4 of 9Full review
For homes with central air that want a quiet 20 kW unit with monitoring included and a service-entrance switch in the box.
Norwall $6,662.42$6,662.4220 kW18 kW65 dBA - Briggs & Stratton PowerProtect+ 18kW#5 of 9Full review
For average homes on natural gas that want full rated output and a long warranty with service included.
Norwall $6,899$6,89918 kW18 kW66 dBA - Generac 22kW Standby 7325#6 of 9Full review
For typical homes with central air that want the best known brand and a whole-house switch in the box.
Amazon $7,229$7,22922 kW21 kW67 dBA - Cummins Quiet Connect RS17A 17kW#7 of 9Full review
For average homes on natural gas that want full rated output and built-in monitoring from a commercial power brand.
Norwall $6,264.97$6,264.9717 kW17 kW65 dBA - Generac 18kW Standby 7324#8 of 9Full review
For average homes with one central air conditioner that want a whole-house switch included.
Amazon $6,639$6,63918 kW17 kW65 dBA - Kohler 20RCAL 20kW#9 of 9Full review
For average homes with central air that want load management in the box and Kohler’s full coverage warranty.
Norwall $6,848$6,84820 kW18 kW70 dBA
Best Standby Generators Under $7,500: Over 22 kW
- Champion 26kW fleX#1 of 3Full review
For larger homes that want 26 kW in a rust-proof aluminum housing with the longest warranty in its class.
AP Electric $7,499$7,49926 kW23.4 kW68 dBA - Generac 26kW Standby 7328#2 of 3Full review
For larger homes with two air conditioners that want to run everything without load shedding.
Amazon $7,253.10$7,253.1026 kW24 kW67 dBA - Generac 24kW Standby 7326#3 of 3Full review
For larger homes with a big air conditioner or electric range that want headroom on propane.
Amazon $6,875.10$6,875.1024 kW22.5 kW67 dBA