How is the spa insulated? Is foam filled a better insulator?
Many of today’s manufacturer’s use an insulation technique known as foam-filling which consists of spraying the entire inner area of the spa with foam insulation that becomes a solid. This is done for several reasons, NONE of which are for the benefit of the customer. Full foam hides manufacturing defects that can cost the owner plenty of money during ownership. Poorly fitted plumbing can cause leaks and are hidden deep in the foam of which has to be removed to access the leak. Which ends in a costly repair bill and areas void of the removed insulation. Manufacturers that use this process depend on the solid foam as a factor of strength to save money on fiberglass and resin as the spa shell strength. The best insulating factor in all applications is a dead air space trapping warmth and recycling waste heat. Easy Life Hot Tubs builds their spas with this in mind with the TemperLock system utilizing a reflective thermal blanket that traps heat between the spa shell and the cabinet wall,
