We've decided to build our own enclosure for our RTB, the thing is from the plan we made it couldn't be heated with UTH's (since the floor would be solid wood). Any ideas for the best way to heat it? Or a way to incorporate a UTH or another form of belly heat?

This is the "blueprint" we made. (I have the heat lamp boxes in there because that's the original way we were/are going to heat it).