So I have my snakes in an AP economy rack because I'm trying to keep my initial investments reasonable. I put it in my bedroom which is a quiet, warm room, but the ambient tub temps were in the low 70's. I didn't want to roast us out of our bedroom with a heater (i hate heat lol) so I bought some fleece by the yard and wrapped it around 3 sides of the rack. Voila! Ambient temps up 6 degrees. Now my babies are warm and happy :)