Hi everyone!! I'm thinking hard about getting an indoor wood boiler but I'm having some trouble figuring out how big I should go. I live in a 2 story 7 year old colonial with about 2500sqft plus I have a room above the garage of about 900 sqft, plus the basement of about another 1200 sqft, which has one daylight side. I'm not quite sure how to calculate the basement in my calculations for my needs. I've been looking at wood gun and tarm units some, and they both have 140k btu units and then a larger unit the E150 in wood gun which is about 150k btu's or so. When I talk to the companies, both seem to think I'm sort of in between the two models. I hate to pay more to get a bigger unit if I don't need it, and yet I would hate to have a unit that isn't big enough for my needs. I also read about some problems that occur when you have a unit that is too big for your needs (I don't plan on putting a tank in to start with). I guess while I'm typing I may as well ask everyone's opinions on both the wood gun and the tarm units. Any help would be greatly appreciated.