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GB832950A
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Improvements in or relating to water storage tanks and means for preventing corrosion thereof
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US2844704A
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Combination range and hot water heater
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US2692936A
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Combination electric range and hot-water heater
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US2486936A
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Combination outlet fitting and sacrificial anode
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US2710833A
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Electrode and water outlet assembly for hot water tanks
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GB658731A
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Improvements in or relating to prevention of corrosion in sheet-metal hot-water tanks
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US2459123A
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Water heating device with corrosion protective anode
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US2196923A
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Resilient pulley
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US2069177A
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Ferrule
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US2157109A
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Apparatus for controlling flow of fuel to a heating device
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US2086294A
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Locking means for cut-offs
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US2043971A
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Gas cock
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US2078465A
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Joint for circulators
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US2070535A
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Water heater
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US2047654A
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Relief valve
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US1966399A
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Gas burner support
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US1875856A
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Water heater baffle
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US1871783A
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Dual gas burner
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US2029987A
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Electric water heater
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US1943045A
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Thermostatic gas burner
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