Quote Originally Posted by Coluber42 View Post
Use a radiant heat panel (on a thermostat!). It makes even heat over a large area and doesn't get hot enough to burn anything. They're more expensive than some options, but definitely cheaper than running a space heater and much more convenient than a space heater in a closet. I'm able to keep a glass tank at a steady 82 degrees in a living room that gets down to 55 during the winter by using an RHP that covers most of the lid, and I just use a UTH for the hot spot. The RHP is on a thermostat, so when the room is warmer it is barely on at all. It's a more expensive initial investment, but then it pretty much just takes care of itself.
Totally agree. I have a 40 gallon tank with a RHP (the 40 watt) bolted into plexiglass that covers about 95% of the lid. I use tape to cover up the small amount of space not covered by the plastic, and i open/close the tape depending on my humidity needs. In the winter the room gets down to 65 or so degrees, the RHP takes a little time to warm it up to my preferred 80 degrees, then it runs at 10% power to maintain. In the summer, the room is about 82 degrees and it isnt on at all, but if i got overboard with the AC, the panel will kick in.

I honestly have no idea how people have heat/humidity issues with glass tanks.