Bradford White has introduced an improved heat trap design for residential gas and electric water heaters. The new heat traps are now factory installed on all residential gas and electric models with 3/4" NPT top inlet and outlet water connections. The new design incorporates a small disc that reduces heat loss through the cold water inlet and hot water outlet. The new heat trap also creates a true dielectric connection on the top water inlet and outlet fittings, and it meets all code regulations that require traps. The greatest advantage is that noise is virtually eliminated.Bradford White Corp.