Ensure reliable home backup power with the Kohler 12kW Standby Generator (Model 12RESV-QS8). Engineered to start and run a heavy-duty 5-ton air conditioner alongside standard household loads, this 120/240-Volt single-phase system delivers 12kW on liquid propane and 11kW on natural gas with a robust 20.3 kVA surge capacity.
Powered by a reliable Kohler KT725 725cc OHV engine, the 12RESV features an advanced RDC2 controller for comprehensive generator, ATS, and load management, plus home energy remote management capabilities. Housed in a durable steel enclosure with E-Coat corrosion protection, it includes a pre-attached steel mounting pad for streamlined installation with no complex fuel or electrical stub-ups required.
Key Features
- Kohler 12kW Standby Generator with Remote Management
- Kohler 725cc OHV Engine Running on Natural Gas or LP Propane
- Starts and Runs a 5-Ton AC Unit + Household Load
- RDC2 Controller for Generator, ATS, and Load Management
- Kohler Home Energy Remote Generator Management System Included
- No Fuel or Electrical Stub Ups Required
- Steel Enclosure with E-Coat Corrosion Protection
- Pre-Attached Steel Mounting Base Included
- UL-2200 Certified
- Proudly Built in the USA
- Kohler Premium 5-Year / 2,000-Hour Limited Warranty
Specifications
| Manufacturer | Kohler Generators |
|---|---|
| Model Number | 12RESV-QS8 |
| Series Name | Kohler HSB |
| Type | Standby Generator System |
| Rated Power - LP | 12 kW |
| Rated Power - Natural Gas | 11 kW |
| Surge Watts | 20.3 kVA |
| Rated Amps | 50 Amps |
| Voltage | 120/240 Volts Single Phase |
| A/C Ton Rating | 5-Ton |
| Enclosure | Steel with E-Coat Corrosion Protection |
| UL Listed | UL-2200 |
| Decibel Rating | 67 dB(A) Weekly Test | 71 dBA Normal Operation |
| Starting System | Automatic Start |
| Low Oil Alert | Low Oil Shutdown |
| Mainline Breaker | 60 Amps |
| Battery Requirement | 12-Volt Group 51 500 CCA (Required) |
| Mounting Pad | Steel Base Attached Included |
| Generator Dimensions (L x W x H) | 30.6 x 28 x 32.4 Inches |
| Generator Weight | 433 Pounds |
| Engine Brand | Kohler KT725 4-Cycle |
| Engine Size | 725 cc OHV |
| Engine RPM | 3600 RPM |
| Cooling System | Air Cooled |
| Alternator Type | 2-Pole Rotating Field 4-Lead |
| Frequency | 60 Hertz |
| Auto Voltage Regulation | Yes |
| Fuel Type | Natural Gas (NG) or Propane (LP) |
| NG Consumption @ Full Load | 216 Cubic-Feet per Hour |
| NG Consumption @ Half Load | 128 Cubic-Feet per Hour |
| LP Consumption @ Full Load | 2.6 Gallons per Hour |
| LP Consumption @ Half Load | 1.5 Gallons per Hour |
| Transfer Switch Model | Sold Separately |
| Made In USA | Yes |
| Warranty | Kohler 5-Year / 2000-Hour Limited Warranty |
Estimate delivery times:
3–8 days International.
UPS
Worldwide Expedited
Only USA & Canada.
- Brand: Kohler
- Product Code: 12RESV-QS8
- Availability: In Stock