Abstract: A device for minimizing hot water heat loss in a water heater through service fittings during standby periods. The inlet and/or outlet service fittings are provided with an internal sleeve having at least one flap that is integrally hinged to the sleeve. In a no-flow standby condition, the flap extends transversely across the sleeve to close off the fitting and prevent hot water heat loss by convection. During periods of water flow, the flap is pivoted to an open condition to permit water flow through the fitting with minimum restriction.

Abstract: Attachment for securing an electric heating element and a thermostat to a water heater. An external fitting is welded around an opening in a water heater tank through which the heating element extends and is secured to oppositely disposed flanges on the outer portion of the fitting by a selectively rotatable latching cap which has ears on the inside which engage the inner portion of the respective flanges of the fitting. A bracket engages the thermostat at the upper end and has a pair of spaced arms at the lower end extending along each side of the fitting with an upstanding abutment on each arm which engages the underside of the flanges of the fitting to hold the bracket and the thermostat against the tank wall. A second upstanding abutment of greater height than the first abutments is located between the first mentioned abutments and engages the fitting flanges to prevent rotation of the bracket.