Abstract: An apparatus for preventing lime scale buildup in a water heater tank includes a curve-biased tube, the tube including an opening disposed at an end, a length of at least seventy five percent of the circumference of an interior bottom of the water heater tank, and a plurality of holes disposed along the length that face radially inward when the tube is arranged in a substantially annular configuration in accordance with its curve-biased position.

Abstract: An apparatus for preventing lime scale buildup in a water heater tank includes a curve-biased tube, the tube including an opening disposed at an end, a length of at least seventy-five percent of the circumference of an interior bottom of the water heater tank, and a plurality of holes disposed along the length that face radially inward when the tube is arranged in a substantially annular configuration in accordance with its curve-biased position.

Abstract: A replacement anode assembly for a hot water heater or storage tank includes an anode body formed from an anode material, a magnet mechanically coupled to a first end of the anode body, and a grounding wire electrically coupled to the anode body.

Abstract: A compact gas fired water heater is provided for recreational vehicles or the like, with higher recoveries and greater efficiencies resulting from increased heating surface and smoother flow of gases in the combustion chamber. The combustion chamber is comprised of two straight horizontal lengths of tube joined in the rear by a specially formed coupler with an additional plate between the tubes to close the front of the coupler.

Abstract: A combination clamping and holding device is provided for clamping to an eave or a gable outrigger for the purpose of receiving and holding a facia board in position for nailing. The device is held in position by an upper lip while a single spindle is being tightened and it is removed after the facia board is nailed in place by loosening the spindle and then moving the device sideways where the upper lip will clear the facia board, allowing the device to drop downward to clear the facia board.The facia board holding portion of the device contains both angular and height adjustments so that it may be pre-set prior to clamping it into position, and the outside leg of the holding portion of the device is higher than the inside leg so that a facia board may be slid off of the edges of eaves or outriggers were it will hit a stop and drop into the correct position.

Abstract: An improved compact water heater is provided for use in recreational vehicles and the like, wherein the water heater is designed for facilitated assembly and for increased heat transfer capacity to achieve reduced heater recovery time. The water heater comprises a compact tank with appropriate cold water supply and hot water outlet fittings. A combustor unit is mounted within the tank, wherein the combustor unit is defined by interconnected matched shell-shaped combustor sections cooperating to provide a generally U-shaped combustor flow path with extended heat transfer surface area for improved water heater performance with reduced recovery time.