Isn't the op using the dimmer as a failsafe? There is a TStat the attempt to limit the Max temp with the dimmer. I'd use a secondary t stay as it is more reliable in unstable temps but a dimmer should still work fine with a TStat.

I don't believe a two or three degree variation in the width make a difference in a rack the air space will even it out anyway.


Sent from my iPhone using Tapatalk