where do I start, got 2800 bi level home trying to heat 2200 (yeah I know) stove is downstairs was fairly happy till now.....18 degrees got up this morning and was 60 in bedrooms and 64 in living room and kitchen (this is upstairs, stove in family room downstairs......been playing with settings, tired of that. moved temp sesing probe last night.....OBVIOUSLY that was a mistake, put it back where it was, I did that because I was using alot of pellets and family room was miserably hot. seems though we have to do that to keep upstairs warm (Porpane too much money) anyways, have harmon p68. what setting do you find out best. by the way our dealer never spoke of outside air, what is it do I need it?? and I dont know what the damper is or where it is or what to do with it....HELP