Abstract: A method, system and apparatus having a spa shell or like vessel containing water or like liquid, a water heating element, a heat chamber molded into the seat of said spa, said seat having conduits therein for the passage of water from the heat chamber to the spa shell, said heat chamber having conduits provided therein which are connected to the heater element which heater element would consist of a commercially and generally available home electrical or gas water heater, with said liquid contents of said spa shell being circulated by a pump whereby the water is pumped from said heat chamber to the interior of the spa shell.