I hope to get six months out of it. However, this year is a bit of an experiment for me. From January 2017 through this past May I was burning 24/7/365 for both heat and domestic hot water. No backup system, so if the fire went out we all took cold showers. This May I installed a Bradford-White Aerotherm electric hybrid heat pump water heater (now there's a mouthful) so I shut the OWB off in late May and didn't put the fire to it until a couple weeks ago. This winter I hope that I have enough in the woodshed (it holds a little over 5 cords) to get me through April. After that it will be scrounging for dry stuff until the heating season is over. The OWB now simply supplements the electric heat pump tank by feeding it 90°F water through the cold intake, so the heat pump doesn't have to do as much work. I expect my electric bill might go up five or six bucks a month during the winter. It was barely noticeable all summer, maybe $15-$20 per month higher than in the past. Small price to pay for hot water.
Sure is! OWB aren’t common here unless out Eastern part of the state( I really don’t know if they are used here in the state but by cold weather, there’s much more out East) Had they make smaller ones the size of a washing machine, might be likely if using that for heating a barn of some kind.
