I got a pretty small one and stuck it to one side, I don't know where to get a thermostat for the UTH but i'm keeping an eye on the temp with a regular thermometer and a constant temp with a probe thermometer (i've to this day never figured out what a temp gun is, unless it's the one with the lazer pointer reader?). Should I keep it on all the time, my room stays a good 70-74ish throughout the night and I've read some people cut their heat source for the night. Should I just keep it on? He has a cool hide and that side is around 70-75 at times?