22-150 kW Liquid-Cooled Automatic Standby Generators

Generac QT 22 to 150 kW

Exceptional Value
Environmentally Friendly
Exclusive Quiet-Test™ Feature

22 to 150 kW

The Generac QT Series makes standby power a sound investment for residential, commercial and light industrial applications. These revolutionary generators are exceptionally quiet, environmentally friendly and so affordable they can often pay for themselves during a single power outage in commercial and industrial applications.

Generac's exclusive Quiet-TestTM feature allows the engine to run at slower speeds during the weekly self-test, resulting in sound levels comparable to a car idling in the driveway. Natural gas operation means fewer exhaust emissions and no diesel odor. A reliable, continuous supply of natural gas eliminates refueling and there's no need for expensive double-walled diesel tanks, no fuel maintenance and no risk of environmental liability from fuel spills.

  • Quiet-Test™: Patent-pending, self-test feature makes the QT Series 50% quieter and more fuel efficient during the generator's weekly self-test cycle
  • Superior Paint: Tough, textured powder coat paint finish for unmatched durability and all weather protection
  • Clean Burning Fuel: Natural gas or LPV
  • Aluminum Enclosures: Some models come equipped with all aluminum enclosures to better withstand the elements in highly corrosive environments.
  • UL Listed: For safety and certified power ratings
22-25 KW
27-30 kW
35-60 kW
70-80 kW
100-150 kW
Switches
Controls
Model Number QT022 QT025 QT025
Rated Power (LP / NG) 22/22 25 25
Rated Amps @ 60 Hz (LPV / NG)
240 V, 1Ø (LP / NG) 92 / 92 104 / 100 104 / 100
3 Phase Models 76 / 76 87 / 84 87 / 84
Engine 2.4L, 4 Cylinder 1.6L, 4 Cylinder 2.4L, 4 Cylinder
Alternator RPM 1800 3600 1800
Enclosure Aluminum Steel Aluminum
Sound Level (dBA @ exercise) 61 62 54
(dBA @ normal operation) 70 74 60
Dimensions (L" x W" x H") 62 x 29 x 34 62 x 29 x 34 77 x 34 x 45
Compatible Transfer Switches RTS RTS RTS
Unit Weight (lbs.) 895 875 1255
Accessories
Scheduled Maintenance Kit Model 5656 Model 5655 Model 5656
Cold Weather Kit Model 5630 Model 5629 Model 5630
Extreme Cold Weather Kit
  *For use w/Cold Weather Kit
Model 5615 Model 5615 Model 5616
PowerMaster Model 5239 Model 5239 Model 5239

* Height does not include exhaust stack(s).