House is 2200sqft. The stove will be sitting in a 400sqft room. I really like the supreme novo series. The Novo 24 (2.4cu in) size looks like the perfect size. Question is do I go bigger to the 38 (3.8cu in)? I worried about getting the 400sqft room too hot and not using the 38 to its full potential. Just not sure if the bigger firebox is worth the money. Suggestions appreciated.