Fireplace heating unit
An efficient heating unit for ready installation in any standard fireplace includes a refractory lined fire box contained within an outer shell to form a heat exchanger between hot gaseous fuel combustion products and living space air entering the jacket space between the walls of the fire box and the outer shell in a continuous convection cycle. Heated air re-enters the living space through a grill above the fire box and fire box flue maze. The flue maze or manifold forms a radiator of great surface area which projects into the living space immediately below the heated air grill and the maze is vented into the chimney by two nonadjustable and one adjustable vents which are sealed from the air passages of the heat exchanger. Lockable and adjustably vented doors at the front of the fire box are provided. A three piece face plate formed of thin metal having thermal contact with both the fire box and heat exchanger shell maximizes heat radiation into the living space.
- Assignee:
- EDB-83-016714
- Patent Number(s):
- US 4354480
- OSTI ID:
- 6717892
- Resource Relation:
- Patent File Date: Filed date 20 Mar 1980; Other Information: PAT-APPL-132295
- Country of Publication:
- United States
- Language:
- English
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