I also heat with wood, and keep a pot of water on the stove so the heated air isn't so dry. You might give that a try.I built a cabinet incubator (thanks for the info specially sally). Test runs are great but having no luck with humidity. Any tips? tried various pan arrangements with wicks. I'very started a cooler hatcher project as well and hope to be full go by the end of January but no luck getting any humidity whatsoever. Doesn't help I heat with wood and it's winter