2/15/19. Installed stat. Need different unit and more parts. Chad looked at job on site. 3/1/19. Removed old unit heater in shop. Installed new unit heater. Ran new b-vent piping for exhaust and intake through sidewall and connected to heater. Reconnected electrical and thermostat wiring to heater. Connected gas piping to heater. Started heater and everything is running properly. Thermostat is set to 45 per homeowner request. That you for choosing Black-Haak heating for your heating needs.