Hi I just finished the mechanics of an outdoor wood furnace. Now I need to get it to run automatically. My plan is to have the blower run constantly for safety and thermostatically control the draft fan. I will use an attic fan thermostat at the furnace to shut it down when temp get too low (run out of wood). Then from inside I will have a 120v thermostat for room temperature and another thermostat on the duct to keep output air at 120f and prevent overburn. At night I plan to turn this down to try and get all night burns. Is this a good economical approach. Already have electric baseboard thermostats i can use. I also have a variable motor controller to control the draft fan. This has been very useful to try to start and control the fire. The furnace is a double barrel wood stove in a 3'x5' metal shed with roxul insulation and hvac duct work looping around inside shed. I have been searching online for other thermostats that would combine the multiple thermostats into one unit but i havent had much luck. i seen some industrial looking one with big red digital temp display that have alarms which i think is a good safety feature but i dont think they will replace more than one thermostat. Anyone know of any thermostats that would at least replace at least 2 thermostats, have digital display, alarm and cost under $100. Thanks for any input.