The breather warmer is only for use in extreme cold weather applications where heavy icing occurs. For use on Generac Air Cooled units manufactured 2013 to present, not all Air cooled units. Also consider model 7101 Battery warmer and 7102 oil warmer cold weather accessories (compatible on both 50 Hz or 60 Hz units). The breather warmer is only for use in extreme cold weather applications Only compatible on Generac units manufactured 2013 to present Recommended for locations that regularly go below 0 degrees Fahrenheit When installing any cold weather item, it is required that the oil be replaced with 5W-30 synthetic Generac 9kW-28kW Breather Heater Kit 7103 120V, 0.13 Amps, 16 Watts Fits Generac 9kW-28kW Guardian Generators Compatible with Generators Manufactured 2013 to Present Recommended for Extreme Climates Where Heavy Icing Occurs Turns on at 40 degrees, Turns off at 55 degrees Generac 1-Year Limited Warranty