Honestly, if you are getting the Proline cage, you wont need a UTH. Like I said, im using a 48x23x14 Proline and I got the PH3 65 watt Pro Product RHP with a Herpstat 1 and I can get the inside temps to 92 degrees if I want and that's not even putting a 1 inch insulation sheet down between the cage and the table its on since Bob told me being in a finished basement even with cement flooring with carpet on it, the heat can still travel through the bottom of the cage and to the floor. So I bet if I used the insulation on the flooring of the cage, I could hit even higher temps(not that I want to) but my boa likes it set to 87f. And that's with a house set at 70f in Washington state. So personally I wouldn't worry about anything except a RHP and thermostat to control it obviously.