I don't know that unit specifically, but I can comment generally.
The heat pads put on at the factory couldn't be simpler. Don't over think it.
They are simply glued onto the bottom surface of each tank, roughly in the center or so of the tank
and the wiring to them is just strung sloppily under the coach. I'm sure the pad manufacturer would either provide or recommend the correct adhesive to use. For what its worth, one of mine was partially loose when i bout it. the dealer reattached with something that failed in short order. I used something I had on hand.... contact cement I think it was... and the last time i looked it was holding
Mine are made by therma heat
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