Tonight it is dipping into the 30's and the Osburn 2200 has been burning since about 1 pm....without trying too hard the downstairs is flirting with 80 degrees....my wife is loving the toasty warm house without the worry of an outrageous gas bill. I'm thrilled at the amount of heat produced by the small amount if wood burned....I only wish we had done this years ago......Without Hearth.com I don't think this could have happened. Thanks everyone! You're a fine bunch of enablers!