6 Terms
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Water heaters
Industry: Household appliances
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Water heaters
recovery fact (RF)
Household appliances; Water heaters
Rating based on the efficiency of the product which is input required to raise 1 gallon of water 1°F.
safety shut off valve
Household appliances; Water heaters
A device on a gas appliance which shuts off the gas supply to prevent a hazardous situation. A flame failure safety shut off operates when the actuating flame becomes extinguished. A 100% shut off ...
scale
Household appliances; Water heaters
A coating or layer (usually lime, biocarbonate or calcium) on the bottom of a tank or interior parts, that may prevent heat transfer.
sealed combustion
Household appliances; Water heaters
Sealing of combustion chamber to prevent spillage of combustion products.
series system
Household appliances; Water heaters
Generally where the primary heater preheats water to a given desired general purpose temperature and feeds into another heater.
sight hole
Household appliances; Water heaters
Generally referring to oil-powered product that allows the viewing of burner and flame patterns.
