Nope... not for me.... not yet anyway A co-worker of mine is looking for some information on possibly purchasing a 2 or 3 year old OWB. It is a Mahoning model 100, wood or coal, supposed to be rated at 150,000 btu. The house is currently heated by (mostly) a wood stove, but they have a oil burning furnace with 2 heating zones and a 3rd for DHW. Any thoughts on this manufacturer or model? I believe the asking price is $3,500 The house is approx 2,000sf, 2 story - I'd assume well insulated, as the 2nd story was recently added. The house is located in Western MA hilltowns.