Efficient Spa Heaters
Cal Spas hot tubs are engineered to heat your hot tub efficiently through the use of our state-of-art hot tub heaters, which transfer the maximum amount of heat directly to the spa water. Exclusive 5.5 kW XL Heat Exchanger™ The 5.5 kW XL Heat Exchanger™ is the most dependable, longest-lasting hot tub heater in the …
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