Heating and temperature elements in a multi-position point of use electric water heater

摘要

A point-of-use electric water heater (10) to be used in a wall or ceiling-mounted horizontal orientation, a floor or wall-supported vertical orientation, or a wall-supported inverted vertical orientation without any substantial modification of the water heater. The water heater (10) comprises an insulated tank structure (24) with an elongated electric resistance type immersion heating structure (44) extending longitudinally through the interior of tank (10). The elongated electric resistance type immersion heating structure (44) is a dual element electric resistance type immersion heater provided with an integral temperature control structure having a separate sensing tube having operatively mounted therein, a pair of thermistors each operatively associated with a different one of the two heating elements.