Quote Originally Posted by Otis11 View Post
Well, thing to be careful of, even if it's aluminum the magnets may stick - the tubing inside of those fins are copper. Don't know how to check that...

And reducing the number of cycles is simple...put 3 more computers in the loop. Only 1 cycle/24 hours- ON.
Considering there's only 3 magnetic elements... I think he's safe with aluminum and copper.