Energy conservation system for hot water heaters and storage tanks

Patent · Tue Jul 08 04:00:00 EDT 1980

OSTI ID:5029972

Farris, W

In combination with a furnace for heating a building and a water heater, an energy conservation system is described comprising a first coil of water pipe disposed within a chamber or duct of said furnace for absorbing heat from said furnace to heat water in said first coil, said pipe being connected between a pressurized source of cold water for said building and a cold water inlet of said heater, said system further comprising a spurge tank for storing a quantity of water therein selectively connectable across said first coil, means for diverting water flowing between said first coil and heater inlet to said spurge tank when the presure of the water flowing between said first coil and heater increases to a first pre-selected maximum pressure value, means for diverting water flowing between said first coil and heater inlet to said spurge tank when the temperature of the water flowing betwen said first coil and heater inlet increases to a first pre-selected maximu temperature value, first check valve means for restraining the back-filling of said spurge tank with water flowing from said source and from the upstream end of said forst coil, second check valve means for restraining the back flow of water to said source from said spurge tank and said first coil, means for venting water and steam from said spurge tank to a sewer line when the pressure of water in said spurge tank reaches a second pre-selected pressure valve, and means for venting water and steam from said spurge tank to a sewer line when the pressure of water in said spurge tank reaches a second pre-selected pressure valve, and means for venting water and steam from said spurge tank when the water temperature in said spurge tank reaches a second pre-selected temperature value.

• Assignee: IFI; EDB-80-123347; ERA-06-000946
• Patent Number(s): US 4211187
• OSTI ID: 5029972
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320100* -- Energy Conservation
Consumption
& Utilization-- Buildings
AMBIENT TEMPERATURE
APPLIANCES
CONTROL EQUIPMENT
ENERGY CONSERVATION
ENERGY STORAGE
EQUIPMENT
FLOW REGULATORS
FURNACES
HEAT PUMPS
HEAT STORAGE
HEATERS
PIPES
STORAGE
THERMAL INSULATION
VALVES
VENTS
WASTE HEAT UTILIZATION
WASTE PRODUCT UTILIZATION
WATER HEATERS
WATER SOURCE HEAT PUMPS