i live in a cold northern climate and i have a bigass home i use a wood stove insert and i got to tellya it really helps usually the living room is too hot and i have to use a fan to blow air around it keeps the place at maybe 78 or so when out side temps are 45-50 ,when it gets really cold it can keep this barn i live in at 65 to 68 it keeps the house heater off most of the time wood is dropped off by local tree guys and a couple of times a year we get tougher and have splitting partys... i usually cook the bbq of course! it really helps! collins 1985 500 sec