Just got my new rig from Brewers equipment and am getting my new Keggle MT ready. I want to insulate it with the foil bubble wrap and us foil tape to adhear it to the keggle. As this MT will be temp adjusted with a burner, how far of a gap/bare space should I leave at the bottom of the keggle so this stuff doesn't melt? Should I use 2 wraps or will one be effecient? This is the stuff that I want to use.