I have a heated basement with a section of open beams in my storage room. I took a piece of heavy cardboard, like a microwave or refrigerator box, and screwed it to the beams with some sheetrock screws and fender washers. The cardboard spans three joists and has two holes cut in it big enough for the boots to pass through and small enough to hold them in.
A small folding party table sits underneath them that holds my Peet boot dryer. Since the extensions the dryer comes with are too short, I cut some 2" ABS to length and used that reach the feet. The ABS fits the Peet boot dryer and fittings perfectly. A little hokey, but it was cheap and it works.
2 peices of wood cut with a U shape just the same size as the ankles on the waders with foam adhesive around the wood so they dont tear up after many uses. hang them upside down and the boots are the same thing right next to them.
Freedom can only be measured by the space between a hunter and his prey. - Matthew T .Bolton
I just hang them in from the ceiling in my garage. I use a coat hanger. The temperature around the ceiling in my garage is always warmer than below. Waders have always dried up in time for another trek the next day.