Mr. Heater Thermostat is compatible with the Big Maxx Unit Heaters and the High Intensity Radiant Garage heaters. No external power source is needed for this thermostat to operate. with its simple 2 wire system, the thermostat mounts in minutes.
Low voltage thermostat settings from 35 degree F to 75 degree F
For use with big maxx heater series, garage heaters, and MHT45 or HST45 tube heaters
Compatible with both natural gas and propane heaters