Personally I have one, but it's set has both a thermostat and humidity monitoring. What I did was drill a hole in my plexiglass and screen, and stuck the hose in the back corner. I see it to right before the point you see steam, it may run longer, but you don't see the smoke. My BP hasn't had a partial shed since I added it. Again, this is just what I do, if I didn't my tank humidity was in the low 40's due to the Ceramic heater on top.