I am having a hard time with my temps in my tub. My dad doesn't believe in heat so the house is kept at 60-65 all the time. I have 2 heat pads on my little tub and the ambient air temperature is 67 degrees. Last night I put foil all 3 of the 4 sides and the top to see if i could better insulate the tub with no luck.

Have any ideas on a better insulator? Or any other suggestions on getting my temps right?