Warm air is forced through 127 air jets blowing upwards forcing the surrounding water to massage the lower back, up the spine and over the shoulders, creating and all over the body massage. Costs will vary according to local electrical cost and amount of time spa is in use. Benefits of hot water therapy out weighs the average monthly energy cost of spa use. Installation 2' thick polystyrene board vacuum clad with high impact plastic approximate R Value 12. Cover Soft lockable cover included.
Keeps heat in and keeps debris out.