Cummins vs Generac
Home standby generators from Cummins and Generac, compared here: sizes and noise, list price and installed cost at 22 kW. Every figure comes from a manufacturer's own pages.
$3,769Generac lowest list price
60 dB(A)Cummins quietest published level
55 dB(A)Generac quietest published level
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Cummins and Generac compared
 Cummins |  Generac | |
|---|---|---|
| Sizes with a published price or noise level | 20 to 30 kW | 10 to 28 kW |
| List price from | through dealers | $3,769 |
| Model near 22 kW | dealer quote | Guardian 22 kW, with switch |
| Installed near 22 kW, natural gas | dealer quote | $11,169 to $16,069 |
| Quietest published level, dB(A) | 60 | 55 |
Cummins sells through dealers, so the unit price is part of a dealer quote. At $7,369, Generac lists Guardian 22 kW; installed, the price runs $11,169 to $16,069. Both brands show the same installation cost lines at the same size, so what separates them is the unit price.
At 23 ft, the quietest published level is 55 dB(A) for Generac, compared with 60 dB(A) for Cummins.
List prices and noise levels appear on the site of each manufacturer. Full details for both brands: Cummins cost and Generac cost.