I have what I would call a tri-level home that is approx 2300 sq feet. It currently has an old Thermo Pride WC-27 Wood Furnace. On the stove the tag says it is rated at 130,000 btu. When I first bought my home 4 years ago, I got it up and running and it did well, but slowly things keep breaking down on the stove and its not doing as good as it was, so I am looking at replacing it. I was going to get one of the larger Fire Chief furnaces, but this year they have discontinued all the large models becaue of EPA regulations. The only one HY-C offers is the Shelter SF1000. Rated for 150,000 btu, has a 1800 cfm blower and says it will heat up to 2000 sq feet. I was wondering if this furnace would be big enough to heat my home? It seems it is rated for more btus but the sq footage rating concerns me. I appreciate any input.