YES!!! You can use the same RHP and thermostat in an indoor closed chamber and outside in your heated night box, when the time comes. All you'd need to do is add a Kane heat mat when that time comes. The combo of a Kane mat and a RHP, controlled by a thermostat, will keep a properly built, well insulted 4x4 night box warm all winter long here in Southern CA. I'm in Santa Clarita and we have nights in the 30s all winter long, occasionally into the high 20s, and my boxes all stay warm.Ohhh radiant panels are also used for heated outdoor houses for tortoises right? I like the idea of being able to use the investment later on as well ... what do you think?