Submersible chamber water heater
A high efficiency water heating apparatus is described comprising a tank to contain water to be heated, means for withdrawing heated water from the upper end of the tank, heating means for heating water in the tank and comprising a tubular member disposed in an opening in the side wall of the tank and extending across the tank, a burner disposed in the tubular member, fuel supply means for supplying a combustible fuel to the burner, means for supplying air to the burner to provide a combustible fuel-air mixture, pilot light means for igniting the mixture and generating waste gases of combustion, a heat exchanger located beneath the tubular member, conduit means for conducting waste gases from the tubular member to the heat exchanger, a stack communicating with the heat exchanger for discharging the waste gases from the apparatus, means for flowing the waste gases from the combustion chamber through the heat exchanger to the stack, a vent tube separate from the stack, one end of the vent tube being disposed adjacent the pilot light means and extending along the outside of the tank and communicating with the atmosphere. The vent tube serves to vent gases generated by burning of the pilot light means.
- Assignee:
- A.O. Smith Corp., Milwaukee, WI
- Patent Number(s):
- US 4685425
- OSTI ID:
- 6036721
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
421000* -- Engineering-- Combustion Systems
AIR FLOW
APPLIANCES
BURNERS
COMBUSTION CHAMBERS
CONTAINERS
DESIGN
EFFICIENCY
FLUE GAS
FLUID FLOW
FUEL SYSTEMS
FUEL-AIR RATIO
GAS FLOW
GASEOUS WASTES
HEAT EXCHANGERS
HEATERS
HEATING
OPERATION
TANKS
VENTS
WALLS
WASTES
WATER HEATERS
WATER HEATING