Building my first rack. I am planning on getting some THG heat tape to use as Underbelly heat.
I was wondering if anyone uses this with a dimmer?

The plan is to use a dimmer in there and try to get it so that it stays a consistent 90-92f on the hotside, It will however be hooked up to a proportional thermostat just in case(johnson 419).
I have 7 shelves that will be wired in parallel, 5 of them having 1foot and the other 2 having 2 feet of heat tape installed. I will be using 4" width heat tape.
Does anyone else do this type of method or something similar?
What specifications would i be looking for on a dimmer and which type?

Any suggestions appreciated.