Brand comparison

Champion vs Generac

A side-by-side from our catalog of 25 sourced models. Numbers come from the spec sheets and listings we've verified, not marketing claims.

At a glance

Spec	Champion	Generac
Models in catalog	9	16
Size range	22–26 kW	10–48 kW
Unit price range	n/a	$3,649–$25,179
Best warranty (catalog)	10 yr	5 yr
Headquarters	Santa Fe Springs, CA, USA	Waukesha, WI, USA
Find a dealer	Dealer locator	Dealer locator

Every figure above is aggregated from our catalog's sourced model pages; open any model for its citations.

Matched sizes

Where both brands build the same size, the best-documented model from each, side by side. Figures are from each model's spec sheet or product page; open a model for its citations.

22 kW
Spec	Champion 22kW Whole House (100A Switch, aXis)	Generac Guardian 22kW
Rated output, propane	22 kW	22 kW
Rated output, natural gas	19.8 kW	19.5 kW
Propane, half load	2 gal/hr	2.53 gal/hr
Propane, full load	3.6 gal/hr	3.9 gal/hr
Sound, running (23 ft)	67 dB	67 dB
Sound, exercise (23 ft)	Not published	57 dB
Engine	999 cc	999 cc

26 kW
Spec	Champion 26kW Whole House (100A Switch, fleX)	Generac Guardian 26kW
Rated output, propane	26 kW	26 kW
Rated output, natural gas	23.4 kW	22.5 kW
Propane, half load	2.39 gal/hr	2.06 gal/hr
Propane, full load	3.95 gal/hr	3.63 gal/hr
Sound, running (23 ft)	68 dB	67 dB
Sound, exercise (23 ft)	Not published	57 dB
Engine	999 cc	999 cc

The honest verdict

Champion covers 22–26 kW across 9 models; Generac covers 10–48 kW across 16 models. Catalog prices: Champion no priced models; Generac $3,649–$25,179. Champion edges warranty at 10 years vs Generac's 5. Pick the brand whose size range and dealer network fit your home and area, then compare the specific SKUs.