So I've gone through the calculations (https://www.hearth.com/econtent/index.php/articles/how_much_heat_does_that_room_need) for each room here: https://docs.google.com/open?id=0BxjLmk_trl6BV3puM2h1SzFqcGs Video of my house floor plan: So I need a maximum of roughly 50k BTU/Hr at the coldest point of the year, to heat my entire 1974 sq. foot house in CT, seems reasonable. I assume this is an average over the span of 24 hrs. as less BTU/Hr. will be needed during the day, and more at night, correct? So in order to calc. the total # of BTUs I'd need to heat over the yearly heating season, I'd just multiply out the # of hours in the season by the 50k BTU/HR figure, and I'm good to go, correct? (I eventually want to calculate the payoff time for purchasing a wood stove/insert, so I need to nail down these details first). Thanks!