Each Arctic Spa comes with our Premier Heatlock Insulation system, designed to minimize heat loss and to maximize energy efficiency.

We apply high density urethane foam to the floor, cabinet walls and the underside of the spa rim. In combination with the spas's sturdy construction, this creates an insulating air space. This means that incidental heat from the heaters and pumps is directed inward through the shell instead of outward, thereby decreasing heating costs by capturing and transferring this ambient heat to the spa water. It also acts as a sound barrier, so you can enjoy your Arctic Spa without being disturbed by mechanical noise from the pumps and motor and allows easy access for servicing and upgrading your spa.

The Perimeter Haetlock system also means protection against freezing in subzero temperatures. If power to your spa is interrupted, heat from the spa water slowly transfers back to the air space, protecting the plumbing and equipment from freezing.

The theory of insulation works the same for spas as it does for houses. House Aillustrates the proper method for maximum efficiency and prevented heat loss. Unfortunately most spas are insulated like House B, with most of the insulation in the basement and the heating equipment outside! You wouldn't heat your house like this, so why your spa?