Dual zone heating unit

Details Dual zone heating unit Dual zone heating unit

F - Mech Eng,Light,Heat,Weapons

24

D

237/11, 309/39

F24D 3/00 (2006.01) F24H 1/22 (2006.01)

Patent

CA 1114794

ABSTRACT An improved heating unit for a recirculating hot- water heating system includes a small-diameter tank of inverted U-shape. In each leg of the tank a vertically oriented heating element extends upwardly from the lower- most end of the leg. Heat-transfer fluid enters each leg at the lowermost end thereof, passes upwardly in each leg being heated by the heating element therein, and exits to the appropriate flow conduit system through a single outlet in the top cross-flow portion. The heating elements are not subjected to any cantilever forces, do not develop hot spots or detrimental coating and provide for uniform effec- tive heating at very low power ratings in comparison to prior art heating units.

371588

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