Not to hijack OP's thread, but does this method work pretty well with PVC enclosures? I've seen way more people saying that you can get away with just a RHP and ditch the UTHs. I have a AP enclosure with a proheat RHP on the way and have been trying to decide between a Herpstat 1 or 2 based off if I want to run a UTH as well, but a lot of people say the RHP will be enough. Do they heat the inside of your warm hide up enough to consider it a "warm hide?"