The water in your Sunbelt Spa stays warmer longer with lower energy costs thanks to the ingenious HeatVault™ insulation system built into the enclosure.

Rather than simply filling the interior of the enclosure with foam insulation, as many spas do, the HeatVault™ insulation system uses foam insulation on the bottom of the shell, the floor of the enclosure, and all four interior walls, creating a “dead air” space completely surrounded by insulation. This is the same principle as the double-glazed glass in your patio door, and it works for the very same reason: dead air, surrounded by an insulator, traps heat more efficiently than solid insulation itself.

• Water stays warmer, longer, with lower energy costs

• Incidental heat generated by the spa pumps is effectively

recycled back into the spa (this not only lowers your spa’s heating costs, but also protects the pumps from overheating by providing a useful method of dissipating the heat they generate)

• Interior pipes and plumbing are fully insulated against freezing

• Access to internal plumbing and the spa’s heater/pump systems is easy; the side insulation actually attached to each removable side panel; when the panels are removed for service, the insulation is removed with the panel, allowing for unobstructed access.