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Kohler 20kW Dual Fuel Home Standby Generator
- $2,787.00
- Brands Kohler Power
- Product Code: 20RCA-QS10
- Availability: In Stock
Kohler Power 20,000 Watt (20kW) Dual Fuel 50-State Air-Cooled Home Standby Generator Product Description The Kohler Power 20,000 Watt (20kW) Dual Fuel 50-State Air-Cooled Home Standby Generator is a permanently installed backup-power solution designed to provide reliable electricity during utility outages. The KOHLER 20RCA can operate on either liquid propane (LP) or natural gas (NG), giving hom..
Reliable 20kW Whole House Backup Generator
Kohler Power 20,000 Watt (20kW) Dual Fuel 50-State Air-Cooled Home Standby Generator
Product Description
The Kohler Power 20,000 Watt (20kW) Dual Fuel 50-State Air-Cooled Home Standby Generator is a permanently installed backup-power solution designed to provide reliable electricity during utility outages. The KOHLER 20RCA can operate on either liquid propane (LP) or natural gas (NG), giving homeowners flexibility when selecting a fuel source.
The generator is rated for 20kW on LP and 18kW on natural gas and produces 120/240V single-phase power at 60 Hz. It is powered by a 999cc KOHLER CH1000 V-twin engine and controlled by the RDC2 digital controller. When installed with a compatible automatic transfer switch, the system can automatically start when utility power fails and return to standby when normal power is restored.
Key Features
- 20kW rated output on liquid propane
- 18kW rated output on natural gas
- Dual-fuel capability
- 50-state-compliant configuration
- Air-cooled engine design
- KOHLER CH1000 V-twin engine
- 999cc / 61 cu. in. displacement
- 120/240V single-phase output
- 60 Hz operating frequency
- RDC2 digital controller
- Approximately 10-second response time with compatible ATS
- 2-pole rotating-field alternator
- Aluminum outdoor enclosure
- Remote monitoring capability
- PowerBoost™ technology for motor starting
- Five-year limited warranty
High-Capacity Residential Backup
The 20RCA provides 20kW of rated power when operating on LP and 18kW on natural gas. At 240V, this corresponds to approximately 83A on LP and 75A on natural gas.
This output level is suitable for larger residential backup applications where multiple electrical loads may need to remain operational during an outage. Actual load capacity depends on the home's electrical load calculation and the starting requirements of connected equipment.
Rated Output
| Fuel | Rated Output | Rated Current at 240V |
|---|---|---|
| Liquid Propane | 20kW | 83A |
| Natural Gas | 18kW | 75A |
Dual-Fuel Operation
The generator can operate on natural gas or liquid propane, allowing it to accommodate different residential fuel systems.
Natural gas may be connected to an appropriate utility supply, while LP operation requires a properly sized propane tank and fuel system. Fuel pressure, piping, tank sizing, and connections should meet KOHLER's requirements and applicable local codes.
This dual-fuel capability gives homeowners flexibility when planning a standby-power system and selecting the fuel source best suited to their property.
KOHLER CH1000 V-Twin Engine
The generator uses the KOHLER CH1000 engine, featuring a V-twin configuration and 999cc (61 cu. in.) displacement.
The engine operates at 3,600 RPM and is rated at approximately:
- 30.9 HP on LP
- 27.1 HP on natural gas
The engine drives a 2-pole rotating-field alternator to produce 120/240V, 60 Hz electrical power.
Automatic Standby Capability
The 20RCA is designed to work with a compatible automatic transfer switch. During normal conditions, the home's electrical loads are supplied by the utility.
When an outage occurs, the transfer system detects the loss of utility power and initiates the generator-start sequence. Once generator power is available, the transfer switch moves the connected loads to generator power. When utility service returns, the system transfers the loads back to utility power and the generator shuts down.
KOHLER specifies an approximate 10-second response time for the 20RCA platform.
Note: The 20RCA generator itself does not include an automatic transfer switch in its generator-only configuration. The exact ATS must be selected separately or purchased as part of a bundled configuration.
RDC2 Digital Controller
The RDC2 controller manages the generator's automatic operating functions and provides information about the system's status.
It is designed to simplify standby operation and monitoring. Compatible KOHLER remote-monitoring solutions can also provide information about generator status and operating conditions.
PowerBoost™ Technology
KOHLER's PowerBoost™ technology helps the generator handle the temporary demand associated with starting motor-driven equipment.
This feature can be useful for residential loads such as air-conditioning compressors, pumps, and other equipment with significant startup requirements. However, the complete electrical load should still be evaluated by a qualified installer before selecting the generator.
Durable Aluminum Enclosure
The 20RCA features an aluminum enclosure designed for outdoor installation. The enclosure protects the generator's internal components while providing access for servicing.
The generator measures approximately 47 × 26.2 × 32.2 inches and weighs approximately 555 pounds in the generator-only configuration.
KOHLER also specifies a wind-resistant enclosure design intended to withstand winds of up to 181 mph under the manufacturer's stated conditions.
Exercise and Noise
Regular exercise helps keep a standby generator prepared for an outage. The 20RCA supports automatic exercise routines that periodically operate the generator and help verify system readiness.
KOHLER lists approximate sound levels of:
- 64 dB(A) during weekly exercise
- 69 dB(A) during full-speed operation
Actual sound levels can vary depending on installation conditions, distance, load, and surroundings.
Fuel Consumption
At 50% load, approximate fuel consumption is:
| Fuel | Consumption |
|---|---|
| Natural Gas | 161 cfh |
| Liquid Propane | 82 cfh |
Actual fuel consumption varies with electrical load, fuel pressure, ambient temperature, and other operating conditions.
Product Specifications
| Specification | Details |
|---|---|
| Brand | Kohler Power |
| Model | 20RCA |
| Product Type | Air-Cooled Home Standby Generator |
| LP Rated Output | 20kW |
| Natural Gas Rated Output | 18kW |
| Fuel Type | Liquid Propane / Natural Gas |
| Compliance | 50-state configuration |
| Voltage | 120/240V |
| Phase | Single phase |
| Frequency | 60 Hz |
| LP Rated Current | 83A |
| NG Rated Current | 75A |
| Peak Motor Starting | 41 kVA at 240V |
| Engine | KOHLER CH1000 |
| Engine Configuration | V-twin |
| Displacement | 999cc / 61 cu. in. |
| Engine Speed | 3,600 RPM |
| Horsepower - LP | 30.9 HP |
| Horsepower - NG | 27.1 HP |
| Alternator | 2-pole rotating field |
| Controller | RDC2 |
| Cooling System | Air cooled |
| Response Time | Approx. 10 seconds |
| Enclosure Material | Aluminum |
| Dimensions | Approx. 47 × 26.2 × 32.2 in. |
| Weight | Approx. 555 lb. |
| Sound Level - Exercise | Approx. 64 dB(A) |
| Sound Level - Full Speed | Approx. 69 dB(A) |
| NG Consumption at 50% Load | 161 cfh |
| LP Consumption at 50% Load | 82 cfh |
| Remote Monitoring | Supported |
| Automatic Transfer Switch | Compatible ATS required |
| Warranty | 5-year limited |
Typical Applications
The 20kW dual-fuel standby generator is well suited for:
- Large residential properties
- Whole-home or extensive-load backup
- Central air-conditioning systems
- Refrigerators and freezers
- Well and sump pumps
- Heating equipment
- Home offices
- Security systems
- Networking and communication equipment
- Essential household appliances
- Homes located in areas with frequent utility interruptions
Installation Considerations
The 20RCA is intended for permanent installation and should be installed by qualified professionals.
Installation planning should account for:
- Household electrical load
- Generator sizing
- Automatic transfer-switch compatibility
- Fuel-line capacity and pressure
- LP tank capacity, when applicable
- Generator clearances
- Exhaust and ventilation
- Electrical connections
- Grounding and bonding
- Local electrical and building codes
- Required permits and inspections
The generator's 83A LP / 75A natural-gas output should not be confused with a 200A residential service rating. A transfer switch may be rated for 200A, but that does not increase the generator's maximum electrical output.
20RCA vs. 20RCAL
KOHLER offers closely related configurations that should not be confused when purchasing.
| Feature | 20RCA | 20RCAL |
|---|---|---|
| LP Output | 20kW | 20kW |
| Natural Gas Output | 18kW | 18kW |
| Fuel | LP / NG | LP / NG |
| Engine | CH1000 | CH1000 |
| Controller | RDC2 | RDC2 |
| Enclosure | Aluminum | Aluminum |
| Automatic Transfer Switch | Sold separately | Included |
| Approx. Weight | 555 lb. | 611 lb. |
| Dimensions | 47 × 26.2 × 32.2 in. | 47 × 26.2 × 32.2 in. |
For a product listing, the 20RCA should therefore be described as the generator-only model unless the seller is specifically offering a bundled package that includes an ATS.
Why Choose the Kohler 20RCA?
The Kohler Power 20,000 Watt (20kW) Dual Fuel 50-State Air-Cooled Home Standby Generator combines substantial residential power output with flexible fuel selection and automatic standby capability.
Its 20kW LP / 18kW natural-gas rating, KOHLER CH1000 V-twin engine, RDC2 controller, PowerBoost™ technology, aluminum enclosure, and remote-monitoring capability make it a strong choice for homeowners who need dependable backup power for a significant portion of their home's electrical system.
For installations requiring automatic transfer, the generator can be paired with a compatible KOHLER ATS selected according to the home's electrical-service configuration and backup-power requirements.