Thanks, and maybe I will switch it to back heat. Would I just wrap it around the back of the tubs? If so it will be too tall. I am actually working on setting it up and adjsuting temps right now and at 86 degrees I was still getting a reading of above 95 with my temp gun inside the tubs. I am going to buy another thermometer to verify my temp gun isn't reading high but for now I dropped the t-stat down to a set temp of 80 and will see how that works. I did only seal the top sheets of OSB and that is a good point that you bring up. Maybe since it is exceptionally dry here I'll be okay, but time will tell!