I would think it would be hard for a heating pad to get through wood, but I guess you'll find out soon enough! It's recommended that they all be used with a thermostat for ball pythons. The pads were made for all types of reptiles, not just ball pythons. Usually they are set to be 30 degrees warmer than room temp, so in most houses that's about 100-110 degrees (that would obviously be way too hot for BPs to lay on). A thermostat might be a little over the top for a heat pad, a rheostat or dimmer would be more than acceptable. Just remember that a rheostat is basically the same as just having a heat pad, if your room get's warmer/colder a rheostat doesn't adjust for that, it just ensures that the heat pad doesn't run wide open so you will need to check it often and adjust for temp changes in the room.