Quote Originally Posted by gunkle View Post
I'd bet an RHP of sufficient size would do the trick. My BP's are on the second floor which can get to 62 in the winter as I'm a bit Scrooge with the oil bill. I have two wooden enclosures I built in February and the 80w RHP in each was enough to keep temps at 90. I use ambient temperature gradient of 89 hot to 78 cool side off just the one RHP per enclosure. I have to cover some of my vents and add water to substrate every few days in the winter to keep up humidity but it works great. I went with the next higher size RHP then was recommended because of the lower house temps and I feel only ever running at say 80% is better the running it a lot at 100%. Should help increase the life span of the RHP.
This was something I saw researching RHP's... Apparently they can come with custom wattage to help adapt to the ambient air. I just can't remember the name of the company right now.

Thanks for the input..