Connection assembly

摘要

A connection assembly for connecting an external heating unit to a heater water tank comprising a mounting assembly connected to a tank opening with a passage opening interiorly of the water tank and connected to the heating unit exteriorly of the water tank, a tube assembly extending through the mounting assembly into the interior of the water tank and thermostatic control means for controlling the operation of the heating unit with a temperature sensing element mounted on the tube assembly within the water tank so that the temperature sensing element is exposed to the temperature of the water in the water tank. The tube assembly may be provided with a tube passage connected to the heating unit exteriorly of the water tank and opening interiorly of the water tank so that water can be withdrawn from the water tank through one of the passages to be supplied to the heating unit and returned from the heating unit to the heater water tank through the other of the passages.