KOHLER liquid-cooled home standby generators
KOHLER sells these liquid-cooled standby units for large houses and small businesses, with natural gas or propane as the fuel. Below, the table lists the six current models with the figures KOHLER prints, and the cards link to KOHLER's own documents.
About the home standby generators Family
Five of the six units belong to the RCL series and run from 24 to 60 kW. They share the RDC2 controller, which can also run a KOHLER RXT transfer switch. The 24, 30 and 38 kW units use a 2.2 L engine, turbocharged on the two larger ones, and the 48 and 60 kW units use a 6.2 L V8. The sixth unit, the 150ERESC, has an 8.8 L turbocharged engine and an APM402 controller, and its manuals are the ones KOHLER writes for its industrial generator sets. Every sheet says the unit can be switched between natural gas and propane in the field.
The two output columns give the 120/240 V single-phase rating, which is also the figure each product page shows. The sound column is the sheet figure for normal operation, taken 7 m from the unit at the quietest of 8 measuring points, so other spots around it may measure louder. Dimensions also come from the sheets. For the 24, 30 and 38 kW units the weight is the page's pound figure in kilograms, because those sheets give a shipping weight that counts the packaging. The other three weights are the sheets' wet figures, with the engine fluids in. Where a page and its sheet differ, the table follows the sheet and the sources note records both.
Every sheet lists a standard warranty of 5 years or 2,000 hours. The RCL sheets also offer extended 7 year and 10 year coverage, and a load shed kit that works with a KOHLER RDT or RXT switch. Five of the six product pages say the transfer switch is sold separately. The 24RCLA page marks it as included, but no page or sheet in this family gives a switch rating, so the table has no switch column.
Models and Specifications
| Model | Output on propane (kW) | Output on natural gas (kW) | Fuel | Engine (cc) | Load management | Sound level at 7 m (23 ft), normal operation (dBA) | Warranty (years) | Cold weather kit | Certifications | Dimensions (mm) | Weight (kg) | Voltage and phase | Availability | Documents |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 24 kW, RCL series24RCLA | 24 | 21 | Natural gas or propane | 2,200 | Load shed kit, optional | 60 | 5 | Not published | cULus listed | 1880 x 836 x 1169 mm | 572 | 120/240 V single-phase | Listed for Canada by KOHLER | |
| 30 kW, RCL series30RCLA | 30 | 30 | Natural gas or propane | 2,200 | Load shed kit, optional | 60 | 5 | Not published | cULus listed | 1880 x 836 x 1169 mm | 599 | 120/240 V single-phase | Listed for Canada by KOHLER | |
| 38 kW, RCL series38RCLC | 38 | 38 | Natural gas or propane | 2,200 | Load shed kit, optional | 60 | 5 | Not published | cULus listed | 1880 x 836 x 1169 mm | 621 | 120/240 V single-phase | Listed for Canada by KOHLER | |
| 48 kW, RCL series48RCLC | 48 | 48 | Natural gas or propane | 6,200 | Load shed kit, optional | 61 | 5 | Not published | cUL/UL 2200 listed, CSA certified | 2280 x 836 x 1182 mm | 767 | 120/240 V single-phase | Listed for Canada by KOHLER | |
| 60 kW, RCL series60RCLB | 60 | 58 | Natural gas or propane | 6,200 | Load shed kit, optional | 61 | 5 | Not published | cUL/UL 2200 listed, CSA certified | 2280 x 836 x 1182 mm | 859 | 120/240 V single-phase | Listed for Canada by KOHLER | |
| 150 kW, ERESC150ERESC | 134 | 144 | Natural gas or propane | 8,800 | Not published | 70 | 5 | Not published | cUL/UL 2200 listed and CSA certified | 3526 x 1153 x 1696 mm | 1,897 | 120/240 V single-phase | Listed for Canada by KOHLER |
Specifications checked against KOHLER's published documents on 2026-10-01. Figures are the manufacturer's and can change; the linked documents are the source.
Canadian Context
Each sheet names the heaters KOHLER recommends for cold weather. The 24, 30 and 38 kW sheets recommend a block heater or an oil pan heater below 0 °C, and both heaters below minus 18 °C. The 48 and 60 kW sheets recommend their block heater below 0 °C and also offer a battery heater. On the 150ERESC sheet, the crankcase ventilation heater is the one recommended below 0 °C. Winters in Hamilton and Niagara pass that mark often, so the electrician plans a circuit to the pad for whichever heater the unit gets.
The 24, 30 and 38 kW sheets print cULus listed, and the 48 kW, 60 kW and 150ERESC sheets print cUL/UL 2200 listed with CSA certification. Those Canadian marks are why every row reads Listed for Canada; the product pages show no mark in their own text. KOHLER uses one website for the United States and Canada, and each sheet gives a single sales and service phone line for both countries. Before ordering, we confirm with the supplier that the exact unit is built for the Canadian market.
At full load on natural gas, the sheets list 8.5 cubic metres an hour for the 24RCLA, 28.7 for the 60RCLB and 55.7 for the 150ERESC. A licensed gas fitter checks that the meter and the piping can deliver that much. Before the unit is wired into the house, the Electrical Safety Authority (ESA) must receive a notification of work. Once ESA has reviewed the work and passed it, the person who filed receives a Certificate of Acceptance.
The Electrical Safety Authority (ESA) notification of work is filed before the work starts. When the installation is done, ESA inspects it and issues a Certificate of Acceptance once it passes. Where the unit burns natural gas or propane, a licensed gas fitter makes the gas connection. Where a meter or a service entrance switch is involved, the local utility does its part of the work.
home standby generators Documents
Industrial generator set operation manual for the 150ERESC
Owner's manual, English
Hosted by KOHLER
For: 150 kW, ERESC
Open the PDF24RCLA, 30RCLA and 38RCLC operation manual
Owner's manual, English
Hosted by KOHLER
For: 24 kW, RCL series, 30 kW, RCL series, 38 kW, RCL series
Open the PDF48RCLC and 60RCLB operation manual
Owner's manual, English
Hosted by KOHLER
For: 48 kW, RCL series, 60 kW, RCL series
Open the PDFIndustrial generator set installation manual for the 150ERESC
Installation manual, English
Hosted by KOHLER
For: 150 kW, ERESC
Open the PDF24RCLA, 30RCLA and 38RCLC installation manual
Installation manual, English
Hosted by KOHLER
For: 24 kW, RCL series, 30 kW, RCL series, 38 kW, RCL series
Open the PDF48RCLC and 60RCLB installation manual
Installation manual, English
Hosted by KOHLER
For: 48 kW, RCL series, 60 kW, RCL series
Open the PDFFrequently Asked Questions
Three of the six give the same output on either fuel: the 30RCLA, 38RCLC and 48RCLC. The 24RCLA gives 21 kW on natural gas against 24 kW on propane, and the 60RCLB gives 58 kW against 60 kW. The 150ERESC goes the other way, with 144 kW on natural gas and 134 kW on propane. All of these are the 120/240 V single-phase ratings from the spec sheets.
Most Ontario houses have a 120/240 V single-phase service, and every sheet in this family rates its unit for that service. The table shows those single-phase ratings. The same units can also be ordered for three-phase voltages such as 277/480 V, and the 150ERESC sheet adds 347/600 V, which suits larger buildings. Before a size is chosen, the electrician looks at the service and at what the house draws.
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