Kohler 20RESA-QS3 20 kW, 120/240V Liquid Propane / Natural Gas CSA Certified Single-Phase Composite Standby Generator

- Item #: BCI2265182

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Configure your Kohler 20RESA-QS3 20 kW, 120/240V Liquid Propane / Natural Gas CSA Certified Single-Phase Composite Standby Generator

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Product Features:

  • 20kW of power will ensure your home will retain power through unexpected outages
  • Connects to existing liquid propane or natural gas fuel supply for easy and efficient power
  • Covered under 5 Year Commercial / Residential Warranty
  • Exclusive 100% corrosion-proof composite enclosure will not rust, even in harsh seaside environments
  • RDC2 Controller provides advanced control, system monitoring and diagnostics
  • UL Listed to UL2200 Engine / Generator Standard for Safety
  • CSA certified
  • Self-Test Mode – periodically runs a self test to ensure that your generator will be ready to work when you need it


  • Kohler Engine – Reliable, air-cooled engine ensures you have your power when you need it most
  • 4-Cycle V2 Engine Ensures Optimum Efficiency
  • Engine CC: 999
  • Engine RPM: 3600 (the unit’s total revolutions per minute)
  • Air Cooled
  • Covered Under 5 Year Commercial Warranty
  • Covered Under 5 Year Residential Warranty
  • Includes Low Oil Alert and Automatic Shutdown

Product Technologies / Benefits:

  • High Quality Power - Kohler home generators provide advanced voltage and frequency regulation along with ultra-low levels of harmonic distortion for excellent generator power quality to protect your valuable electronics.
  • Corrosion-Proof Enclosure - The bold new Kohler design is completely corrosion proof, even in harsh seaside environments, and is impact-resistant even at -34 C (-30 F).
  • Fast Response - Kohler’s unique Fast-Response excitation system delivers excellent voltage response and short-circuit capability.
  • Quiet Operation - Kohler home generators provide quiet, neighborhood-friendly performance.

Product Specifications:

  • Overall Height: 29” (measured from the bottom of the base to the highest point on the generator)
  • Overall Length: 48” (measured from the back to the front of the generator)
  • Overall Width: 26.2” (measured from the furthest point on the left to the furthest on the right)
  • Noise Rating at Exercise: 64 dbA (when the unit is running a self check)
  • Noise Rating at Normal Operating Load: 69 dbA (when the unit is operating at normal power)
  • NG Power Capacity: 18kW (wattage when running on natural gas)
  • LP Power Capacity: 20kW (wattage when running on liquid propane)
  • NG Consumption (50% Load): 161 cubic feet per hour
  • LP Consumption (50% Load): 2.3 gallons per hour

Additional Kohler Links

Our SKU: Kohler 20RESA-QS3

This product is listed under the following manufacturer number(s):

  • Kohler 20RESA-QS3
    Liquid Propane / Natural Gas

*Denotes a finish or option that has been discontinued

Kohler 20RESA-QS3 Product Specifications

Amperage 83
Auto Shut Off Yes
Battery Included No
Battery Type 500 CCA
CARB approved Yes
CC 999
CSA Approved Yes
Controls Electronic
Cooling System Air Cooled
Enclosure Material Composite
Engine Brand Kohler
Engine Type 4-Cycle V2
Frequency 60
Fuel Type Liquid Propane, Natural Gas
Height 29
LP Consumption 2.3
Length 48
Low Oil Alert Yes
Manufacturer Warranty 5 Year Commercial, 5 Year Commercial (Engine), 5 Year Residential, 5 Year Residential (Engine)
Motor RPM 3600
Mounting Pad Material Composite
Natural Gas Consumption 161
Noise Rating 64 dbA (Test), 69 dbA (Full Load)
Phase 1
Transfer Switch Included No
UL Listed Yes
Voltage 120, 240
Wattage 20000
Width 26.2

Installation Resource Center

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