Coyote Spas™ Northern Insulation utilizes a perimeter Heatlock™ insulating system first developed for spas installed in the coldest regions in the world. Fundamental to this design is an outer layer of high tech insulating material, a trapped dead air space where the equipment is housed, and a shell material that allows the transfer of incidental heat through the spa shell.
This design guarantees extremely low operating costs and protects against freezing in the event of power failure.