My reason for interest in a boiler is based not on how warm the house is but how dry. I do have baseboard electric hydronic units throughout the house, which very rarely come on. We do tend to use an unvented propane fireplace(got a propane delivery yesterday 89gals, @ $2.39/ for 4 months.) I just hooked up the 70k in Oct., added a 1st class ductwork system,if I may say so myself ,which keeps the house heat fairly even, but even with 3 humidifiers running 24/7 the humidistats indicate 30-40% humidity, which isn't good on furniture, guns, and guitars, all of which I value. The main part of the house is a 100 +/- year old log cabin, with contemparary additions 2800 sq ft. The house is remarkably comfortable but here is the stupid question: where does all this water go??Up the chimney?? No water on windows, insulation in walls is dry. Back to the thread, would the house be as warm with baseboard hot water(can't do floor radiant, hardwood floors) I could always have a zone for the basement to keep my warm floors. Would the AA130 with baseboard hw have enough btu's to do the job my hot air does minus the dry heat problem? I do, because of a previous project have 3/4 copper run to most of house for baseboard HW, and I don't have a domestic coil for the 70k, and I'm determined to get off the electric grid for domestic hot water. Two more points for the AA.