I have a United States Stove Company 1400 Wood Furnace, but I'm asking here since the boiler room seems to be mostly well...wood boiler guys. It has an air injecter (is that the right term? Its the little device that blows air into the firebox to heat the fire up) and a 1000cfm blower. On the front, the bottom door for the ash tray has a wheel to adjust air flow, and the loading door has an adjustable bimetal spring contraption that lets in more or less air depending on how hot the fire is. I work 3rd shift, and my girlfriend is in bed while I'm at work. I load the firebox as full as possible before I leave for work, and when I get home, the fire is completely out and the house is freezing. I'm burning seasoned oak and ash cut-offs from the local lumber mill. I HAVE to keep the air flow knob on the ash door cracked, otherwise the chimney smokes really bad and smokes up my neighborhood. The loading door air adjustment I keep set to low. I adjusted the air injector to blow as little air as possible, to conserve the wood, but it seems like no matter what I do it always burns up before I get home. Any ideas? Its not too bad with it in the 40s, but when it gets into the 20's, its going to be even worse coming home to a freezing house. I know I'm not stretching the stove too far, because it will heat up to a 2200sqft house, and mine is only 1400.