Name: Kohler 20RCAL 20kW
Brand: Kohler
Price: 6848.00 USD

For average homes with central air that want load management in the box and Kohler’s full coverage warranty.

Price checked November 1, 2026. As an Amazon Associate we earn from qualifying purchases.

Pros

Included switch sheds big loads on its own, so the generator is not overloaded when the air conditioner kicks on
Warranty covers parts, labor and dealer travel for the full 5 years
Low 3.5 in water column gas pressure requirement can save a meter upgrade

Cons

The Kohler RCA family

Every Kohler RCA model we rank, smallest first. Ratings compare each against its own size.

Model	Propane	Rating	Price
Kohler 14RCAL 14kW	14 kW	3.0/5	$5,899
Kohler 20RCAL 20kW (this one)	20 kW	2.9/5	$6,848
Kohler 26RCAL 26kW	26 kW	3.0/5	$8,349

How it scores

The rating comes from 5 measured or published factors, each scored 0-100 against fixed reference points for its size. How we rank explains each one.

For homes with central air that want a quiet 20 kW unit with monitoring included and a service-entrance switch in the box.

$6,662.42

For average homes on natural gas that want full rated output and a long warranty with service included.

$6,899

For average homes on natural gas that want full rated output and built-in monitoring from a commercial power brand.

$6,264.97