Virginia Woodwoker wrote:I do not know what BTU my wood stove is.
It would be worth your while to find out. If you have a stove that works well now, that is an accurate predictor of how many BTU the new stove should have. A BTU is a BTU whether it comes from a wood stove or a coal stove. You can quote square feet and insulation of your house and your climate, and if you are lucky you may find someone else with similar specs AND with the DS stove. But it's more reliable simply to start with your current stove and extrapolate from there.
You could post a specific question here (in a new thread, maybe with Papa Bear in the title), describing dimensions of your wood stove and even posting a picture, and someone may well have the BTU information. There's also a forum at hearth.com, I think, that deals more with wood stoves, so that might be useful.