Kohler 20RCA 20kW
Kohler 20RCA 20kW is a home standby generator from Kohler, rated 20,000 running watts on propane and 18,000 W on natural gas, measured at 69 dBA, with 120/240V output.
MSRP: $5,813
| Type | home-standby |
|---|---|
| Fuel | natural-gas, propane |
| Running watts (gas / LP for standby) | 20000 W |
|---|---|
| Running watts (propane) | 20000 W |
| Running watts (natural gas) | 18000 W |
| Noise level | 69 dBA |
|---|---|
| NG use at half load | 161 ft³/h |
| Propane use at half load | 2.25 gal/h |
| Output voltage | 120/240V |
|---|---|
| Automatic transfer switch included | No |
| Start type | automatic |
|---|
| Engine | Kohler CH1000 |
|---|---|
| Engine displacement | 999 cc |
| Weight | 555 lb |
|---|
| Warranty | 5 yr |
|---|
What the numbers mean
- At 20,000 running watts on its best fuel, this unit is sized for whole-house coverage on a typical 200 A home, subject to a load calculation by a licensed electrician.
- Runs on natural gas, propane — expect lower output on propane (roughly 10%) and natural gas (roughly 20%) than on gasoline; the spec table shows the published per-fuel ratings.
- Estimated fuel cost for 24 h at ~50% load: about $58 on natural gas at national average prices (assumptions).
- Permanently installed unit: sizing, gas-line capacity, placement clearances, and the transfer switch are a job for licensed installers under local permits.
Compare the Kohler 20RCA 20kW
- Kohler 20RCA 20kW vs Briggs & Stratton PowerProtect DX 20kW (040657)
- Kohler 20RCA 20kW vs Briggs & Stratton PowerProtect DX 26kW (040806)
- Kohler 20RCA 20kW vs Champion aXis 14kW with 200A ATS (100837)
- Kohler 20RCA 20kW vs Cummins QuietConnect RS17A 17kW
- Kohler 20RCA 20kW vs Cummins QuietConnect RS20A 20kW
- Kohler 20RCA 20kW vs Cummins QuietConnect RS20AC 20kW with 200A ATS
- Kohler 20RCA 20kW vs Cummins QuietConnect RS25 25kW Liquid-Cooled
- Kohler 20RCA 20kW vs Cummins QuietConnect RS30 30kW Liquid-Cooled
Similar generators
- Briggs & Stratton PowerProtect DX 20kW (040657) ( 20,000 W running)
- Cummins QuietConnect RS20A 20kW ( 20,000 W running)
- Cummins QuietConnect RS20AC 20kW with 200A ATS ( 20,000 W running)
- Generac Guardian 20kW (7039) ( 20,000 W running)
- Kohler 20RCAL 20kW with ATS ( 20,000 W running)
- Generac Guardian 18kW (7226) ( 18,000 W running)
Frequently asked questions
What can the Kohler 20RCA 20kW run during an outage?
With 20,000 running watts on its best fuel, the Kohler 20RCA 20kW is sized for whole-house coverage on a typical 200 A home, subject to a load calculation by a licensed electrician. Add up your actual loads with a sizing worksheet — the bands here are rough guidance, not a load calculation.
What does the Kohler 20RCA 20kW cost to run for a day?
Roughly $58 for 24 hours of continuous operation at about 50% load on natural gas, at national average fuel prices. The assumptions behind this estimate are documented on the methodology page; your fuel price and load change the figure.
Does the Kohler 20RCA 20kW start automatically?
Yes — home standby generators monitor utility power and start themselves when it fails; pairing it with an appropriately sized automatic transfer switch (sold separately for some configurations) completes the automatic changeover.
Sources
- www.kohlerhomeenergy.rehlko.com (retrieved 2026-07-23)