We heat with a wood stove, too, simply because using our furnace is not affordable. The incubator is in the corner of the dinning room, which is about 35 feet from the wood stove (and 3 rooms away). The temp there stays pretty much around 62 degrees. I have not had any trouble keeping my cheap Hovabator at a constant temp (after the first day which took some initial adjusting just because I'm a newbie). My eggs seem to be doing really well, but I haven't hatched any yet so I could be doing it all wrong!I have some challenges with hatching. We do not have AC or central heat, we heat by wood burning stove. I'm using a LG 9200 still air, I turn by hand and if all of that wasn't enough these are pullets eggs. They are from my own flock of barnyard mix. Dad is BR and moms are RIR, BR hen, Australorp and three mutts that look like the Australorp but are a mix of ? Not sure who lays what other than the RIR's.
For Christmas I am getting a better bator but I also wouldn't trade doing these hatches because I've learned so much about hatching eggs and chick development.
I have 3 thermometers in my incubator. The temp is right around 100 and the humidity is 40%. I am going to weigh the eggs tonight to make sure they are losing the correct amount of weight.