cra wrote:I got mine on Biltema (http://biltema.no), but I don't suppose you have that where you live. I'm sure you have a lot of similar shops, though. I got the kind of mats that is originally intended for sound proofing for the tank (it doesn't take much, one small plate is enough). It has an adhesive coating on one side, and a reflective aluminium coating/film on the other. It was about half an inch thick.
Ah, I know the kind of thing you mean. We have the brand Dynamat here. I hadn't thought of using it as an insulation.