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Kohler 20kW Dual Fuel Home Standby Generator
- $2,787.00
- Brands Kohler Power
- Product Code: 20RCA-QS5
- Availability: In Stock
Kohler Power 20,000 Watt (20kW) Dual Fuel 50-State Air-Cooled Home Standby Generator with 200-Amp Automatic Transfer Switch Product Description The Kohler Power 20,000 Watt (20kW) Dual Fuel Home Standby Generator with 200-Amp Automatic Transfer Switch is a permanently installed backup-power system designed to keep residential electrical loads operating when utility power fails. The generator use..
Whole House 20kW Generator with 200 Amp Transfer Switch
Kohler Power 20,000 Watt (20kW) Dual Fuel 50-State Air-Cooled Home Standby Generator with 200-Amp Automatic Transfer Switch
Product Description
The Kohler Power 20,000 Watt (20kW) Dual Fuel Home Standby Generator with 200-Amp Automatic Transfer Switch is a permanently installed backup-power system designed to keep residential electrical loads operating when utility power fails. The generator uses dual-fuel technology, allowing it to operate on either liquid propane (LP) or natural gas (NG).
Based on the KOHLER 20RCA platform, the generator produces 20kW on LP and 18kW on natural gas. It uses a 999cc KOHLER CH1000 V-twin engine, an RDC2 controller, and a 120/240V single-phase alternator. When paired with a compatible automatic transfer switch, the system can automatically detect a utility outage, start the generator, transfer the connected loads to generator power, and return them to utility power when service is restored.
Important package note: KOHLER offers the 20RCA generator both as a generator-only configuration and as bundled configurations with an automatic transfer switch. Because 200A ATS models can differ in configuration, the exact transfer-switch model should be verified for the specific package being sold.
Key Features
- 20kW maximum output on liquid propane
- 18kW maximum output on natural gas
- Dual-fuel operation
- 50-state-compliant configuration
- Air-cooled design
- KOHLER CH1000 V-twin engine
- 999cc / 61 cu. in. engine displacement
- 120/240V single-phase output
- 60 Hz frequency
- RDC2 digital controller
- Approximately 10-second response time
- 2-pole rotating-field alternator
- Aluminum outdoor enclosure
- Remote monitoring capability
- Automatic utility-to-generator transfer with compatible ATS
- Automatic retransfer to utility power
- PowerBoost™ technology for starting demanding loads
- Five-year limited warranty
20kW LP / 18kW Natural Gas Output
The generator's output depends on the selected fuel. KOHLER rates the 20RCA at 20kW when operating on LP and 18kW when operating on natural gas.
| Fuel | Rated Output | Rated Current at 240V |
|---|---|---|
| Liquid Propane | 20kW | 83A |
| Natural Gas | 18kW | 75A |
The actual loads that can be operated simultaneously depend on the home's electrical load calculation and the starting requirements of equipment such as air conditioners, pumps, compressors, and other motor-driven appliances.
Dual-Fuel Operation
The generator can be configured to run on natural gas or liquid propane, providing flexibility when planning a residential backup-power system.
Natural gas may be convenient for properties connected to a suitable utility gas supply, while LP can be supplied from an appropriately sized propane tank. Fuel-system sizing, pressure, connections, and installation must comply with KOHLER specifications and applicable local requirements.
Dual-fuel capability is particularly useful when homeowners want more than one fuel option available for extended power interruptions.
KOHLER CH1000 V-Twin Engine
The generator is powered by 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 and 27.1 HP on natural gas. The engine drives a two-pole rotating-field alternator designed to produce 120/240V residential power.
Automatic Standby Operation
The compatible automatic transfer switch continuously monitors the utility source. When a power outage is detected, the system initiates the generator-start sequence.
After the generator reaches operating conditions, the ATS transfers the connected electrical loads from utility power to generator power. When utility service returns and stabilizes, the ATS transfers the loads back to the utility source and the generator completes its shutdown cycle.
KOHLER specifies an approximately 10-second response time for the 20RCA platform.
200-Amp Automatic Transfer Switch
The 200A rating of the automatic transfer switch should not be confused with the generator's output rating.
At 240V, the generator produces approximately 83A on LP and 75A on natural gas. A 200A ATS is designed to switch a 200A-rated electrical service or load, but it does not increase the generator's capacity to 200A.
KOHLER offers several 200A ATS configurations. Depending on the installation, the appropriate model may be a standard transfer switch, a version with an integrated load center, or a service-entrance configuration.
For accurate product listings, the complete ATS model number should be confirmed rather than assuming all 200A KOHLER transfer switches have the same features.
RDC2 Controller
The RDC2 digital controller manages the generator's automatic operating functions and provides information about system status.
It is designed to coordinate standby operation and simplify monitoring of the generator. The system also supports remote monitoring through compatible KOHLER monitoring solutions, allowing users to check generator status without routinely inspecting the unit.
PowerBoost™ Technology
The 20RCA incorporates PowerBoost™ technology, which is designed to provide additional starting capability for demanding motor-driven loads.
This can be useful when starting equipment such as air-conditioning compressors and pumps. However, generator sizing should still account for the actual starting current and operating characteristics of the equipment connected to the backup system.
Durable Aluminum Enclosure
The generator features an aluminum enclosure designed for outdoor installation. KOHLER specifies a wind-resistant enclosure design and service-friendly construction intended to provide access to the generator's internal components.
The unit measures approximately 47 × 26.2 × 32.2 inches and weighs approximately 555 pounds in the generator-only configuration.
Exercise and Maintenance
Regular exercise helps keep a standby generator prepared for an outage. The 20RCA supports automatic exercise routines designed to periodically operate and check the generator.
KOHLER documentation identifies 20-minute exercise cycles for the 20RCA/20RCAL family. Exercise settings and whether the generator operates with or without a load depend on the system configuration and compatible transfer switch.
Fuel Consumption
Approximate fuel consumption at 50% load is:
| Fuel | Consumption |
|---|---|
| Natural Gas | 161 cfh |
| Liquid Propane | 82 cfh |
Actual consumption varies with electrical load, fuel pressure, ambient temperature, and other operating conditions.
Product Specifications
| Specification | Details |
|---|---|
| Brand | Kohler Power |
| Generator 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 |
| Engine | KOHLER CH1000 |
| Engine Configuration | V-twin |
| Displacement | 999cc / 61 cu. in. |
| Engine Speed | 3,600 RPM |
| Horsepower on LP | 30.9 HP |
| Horsepower on NG | 27.1 HP |
| Alternator | 2-pole rotating field |
| Controller | RDC2 |
| Cooling System | Air cooled |
| Response Time | Approximately 10 seconds |
| Enclosure Material | Aluminum |
| Dimensions | Approx. 47 × 26.2 × 32.2 in. |
| Generator Weight | Approx. 555 lb. |
| NG Consumption at 50% Load | 161 cfh |
| LP Consumption at 50% Load | 82 cfh |
| Exercise Cycle | 20 minutes |
| Remote Monitoring | Supported |
| Transfer Switch | 200A automatic transfer switch configuration* |
| Warranty | 5-year limited |
*The exact 200A ATS model and configuration should be confirmed for the particular package. The generator's output remains 20kW on LP and 18kW on natural gas regardless of the ATS's 200A switching rating.
Ideal Applications
This KOHLER standby system is suitable for:
- Large residential properties
- Whole-home or extensive-load backup
- Homes with central air conditioning
- Refrigerators and freezers
- Well and sump pumps
- Heating equipment
- Home offices and networking equipment
- Security and communications systems
- Essential household appliances
- Properties subject to frequent power outages
Installation Considerations
The 20kW standby generator is intended for permanent installation and should be installed by qualified professionals.
Before installation, verify:
- Total household electrical load
- Generator sizing requirements
- Generator-to-ATS compatibility
- 200A service configuration
- Natural-gas or LP fuel availability
- Fuel-line sizing and pressure
- Required clearances
- Grounding and bonding
- Exhaust and ventilation requirements
- Local electrical and building codes
- Required permits and inspections
The 200A transfer-switch rating does not mean the generator can supply 200A continuously. The generator's maximum rated current is approximately 83A on LP and 75A on natural gas at 240V.
20RCA vs. Bundled Configuration
KOHLER's model designations should be checked carefully when purchasing a generator-and-ATS package.
| Feature | 20RCA Generator | 20RCAL Bundled Configuration |
|---|---|---|
| LP Output | 20kW | 20kW |
| Natural Gas Output | 18kW | 18kW |
| Fuel | LP / NG | LP / NG |
| Engine | CH1000 | CH1000 |
| Controller | RDC2 | RDC2 |
| Cooling | Air cooled | Air cooled |
| Transfer Switch | Sold separately | Included |
| Generator Weight | Approx. 555 lb. | Approx. 611 lb. |
Therefore, a product described as “20kW Dual Fuel with 200A Automatic Transfer Switch” should identify the exact package/model number to establish which ATS is included and whether it provides additional functions such as a load center or service-entrance capability.
Why Choose the Kohler 20kW Dual-Fuel Generator?
The Kohler Power 20,000 Watt (20kW) Dual Fuel 50-State Air-Cooled Home Standby Generator provides a practical combination of high residential output and fuel flexibility. With 20kW on LP, 18kW on natural gas, a 999cc V-twin engine, RDC2 controller, automatic standby capability, PowerBoost™ technology, and an outdoor aluminum enclosure, it is designed for homeowners who need dependable backup power for substantial household loads.
When paired with the appropriate 200A automatic transfer switch, the system can provide seamless automatic switching between utility and generator power while accommodating the electrical-service requirements of many larger homes.
Important: Always verify the generator and ATS model numbers, because KOHLER offers multiple 200A transfer-switch configurations with different features and installation requirements.