I will be working on a new 32qt rack soon and I have a couple of questions.

#1. What size flexwatt do you think would be right for that size tub? I was thinking 4" or I was thinking 2 rows of 3" on each level. The temp of the room is about 70.

#2. I know with belly heat after time the tubs sliding in and out can wear the flexwatt out. If I recessed the flexwatt I wanted to put plexiglass over it to protect it more. Would putting the plexiglass over it prevent most of the heat coming through?

Thank you all for your advice.