Yes I will agree with woodand metal guy. When it gets cool enough to call for heat you will I will hear a click from the control board as a relay closes and the light will stop flashing. It then start at the number 1 feed rate and progresses up to 2, then 3, and 4 unless it gets warm enough for the thermostat to signal warm enough and it will go back to 1 and pilot. If it would start on the number 4 feed rate it would flood the burn pot with corn and go out. You can tell the feed level by timing the auger "on time" (auger light) with a stop watch. It is on 1.5 seconds on number 1 with no trim adjust. 2 seconds on number 2, 2.5 seconds on number 3, 3 seconds on number 4, and 3.5 seconds on number 5.
I have my thermostat on a wall to the side of my stove about 10-12 feet. With the furnace you would probably want it away from heat delivery so that it would not cycle the thermostat on and off too rapidly that it never gets to a high burn rate. (IMO. I live in cold climate area)