I finally broke down and bought a Mr Heater 45k BTU garage heater. The propane company installed it last night, except for the electrical. I wired a 16gauge electrical extention and plugged it into an outlet. I followed the startup instructions as per manual. The light is flashing "Slow flash" - "no call for heat" as per manual. The unit will not fire. In the manual there are several references to a "thermostat". Is this part of the unit? If yes, where exactly is it? What am I doing wrong here?
TIA
TIA