5-276-04-012-001

Configured for in-tank heating with boiler water in the tubes, this configuration carries the two-pass U-bend bundle construction that defines the TCS/TCW tank heater range. The bundle mounts through a collar in the tank wall and heats the surrounding fluid by natural convection. Its envelope centers on a 4-inch diameter shell, and roughly 11-1/4 inches overall in a 2-pass arrangement. That works out to about 2.1 square feet of heat transfer surface on 3/4-inch O.D. tubes. Material selection covers cast iron bonnets, steel shell, copper tubes, and brass tubesheets. The unit is rated for 150 PSI on the shell side, 150 PSI on the tube side, and 375°F maximum temperature. Installations range across domestic water storage heating, hot water storage tanks, and hydronic-fed storage systems. This build is designated 5-276-04-012-001.