I have been looking at furnaces to heat my house (1600 SF main floor + full walkout basement). It was built in 2002 and seems to be well insulated. A portion of the basement is a garage where Id like to put the furnace. This garage has a single insulated garage door, a normal walkout door to the outside, and a normal door to the rest of the basement. It would be really easy to install the furnace and do the day to day tasks like unloading of wood, etc with the furnace located in this area. I plan to use this area primarily as a workshop. Im thinking the garage portion (~300 SF) would be heated from radiant heat alone. I could always install some duct to this area if the radiant heat wasnt enough. I would rely on the wood furnace to heat the main floor primarily and just keep the rest of the basement bearable. Also I should add that I live about right in the middle of Indiana. Our weather typically doesnt stay super cold for very long.. we may see a low of -10 degrees for a few days or a week. I really just hate getting surprised with a 4 or $500 electric bill. January is our coldest month and the average low temp for the month is 19 degrees. Questions: 1. Does anyone see any holes or issues with my plan? If its cold out and I open the garage door for a few minutes, will this cause any issues with the furnace? I have a normal 2 car garage that I will use daily for vehicles, so I dont expect I will need to open and close the basement garage door much, especially in the winter. 2. Which furnace model should I be looking at? I'd like something under $2k, able to heat the whole house by itself during average winter conditions, and relatively efficient. I have looked at the Shelter SF1000 (also known as a Fire Chief FC1000). I know one forum member has had persistent flash back issues, but I havent heard of anyone else having problems. I have also considered the Tundra II/Heatmax II, but theyre more expensive and seem to have a long history of issues among many members, though I havent heard much about the newer versions. Caddy and Kuuma are too expensive. It would take many years to recoup the $$ spent on one of these, considering I dont live in a frigid climate. If I dont go with one of these low-mid priced EPA stoves, I will likely go with an older stove and use it primarily in the coldest of months. Disclaimer, I like to tinker with things to some extent. I am a controls engineer, and like many of you, I'm sure I will modify some things at some point. A PLC with several temp probes and ability to turn on/off the blowers, forced air fan, maybe a VFD... data logging capabilities... audible temp alarms... this is going to be fun. I will try not to burn the house down.