It must have been a chilly day there today, and looks like more cold for tomorrow. What other insulating improvements have you done, in addition to the styrofoam skirting, heat tunnel (for external heat), sealing most of the refrigerator vents, the radiator and engine vents the insulation at the step well, and insulating around the wheel wells? If you have the temperature set for say 20 degrees C (68 degrees F), approximately how many times an hour would the furnace fire up, without using the wood heat from the trailer?
