I am a new to the forum and I have used both of the BTU calculators on this site and neither one really give me that warm fuzzy fealing that the answer I got was accurate. I live in northwestern Oregon and recently purchased a new 2300 sq ft home. I have decided to purchase a pellet stove insert to be the primary heat source for the home. I placed on order a Breckwell P23I (mabey jumped the gun). The question I have now after really analyzing BTU input and output is..........Is this stove going to be adequate? The problem I have is unlike most manufactures Breckwell does not publish the square foot range their products will heat. Rather they leave that up to you. I realize that many factors can change this number but at least a ballpark figure would sure be nice. From what I gather Breckwell publishes a BTU INPUT of 46,000 BTU and lets assume conservatively that the stove is 80% efficient. That meens this stove has about 38,000 BTU OUTPUT. Will that be enough?? I compared those numbers to some of the other manufactures published numbers, here is what I found.......... Quadrafire says 30,000 BTU will heat 1500 sq ft says 40,000 BTU will heat 2500 sq ft Winslow says 37,000 BTU will heat 2000 sq ft Harman says 42,000 BTU will heat 1400 sq ft So as you can see there is a huge difference between the manufatures on how much heat will heat how much space. Any thoughts??