Multi-zone boiler for firing with solid and liquid fuel
Patent
·
OSTI ID:6381267
A furnace for alternatively burning solid or liquid fuels is disclosed. The furnace includes an oil burner and a solid fuel burner as well as a combustion chamber for the burning fuel. The hot combustion gases can be introduced through one of two sets of chimney gas flues, depending upon the fuel being burned. A tiltable flap at the inlet of the chimney gas flues controls which set of flues the gas passes through. At the outlet of the flues, a reversing chamber reverses the direction of the gases and directs them to a flue gas pipe for removing the combustion gases from the furnace. The position of the tiltable flap is controlled by a control means responsive to the sensed temperature of the gas leaving the furnace. The chimney gas flues define a heat exchanger and may be formed from flat plates or round ducts.
- Assignee:
- EDB-83-069075
- Patent Number(s):
- US 4367697
- OSTI ID:
- 6381267
- Country of Publication:
- United States
- Language:
- English
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