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GB415703A
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Improvements in connection with the flues of heating appliances
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Flue structure
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GB370517A
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Casing structure for water heaters and other heating appliances
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GB375833A
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Water heater flue and method of forming same
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Water heater flue
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US1845027A
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Thermostat mechanism
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Thermostatically controlled mechanism
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DE550757C
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Gas burner head
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GB318193A
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Sectional steam boilers and liquid heaters
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|
US1857471A
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Boiler structure
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|
US1805222A
|
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Water heater
|
|
GB312981A
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Improvements in or relating to gas burners
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US1753962A
|
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Gas burner
|
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US1859745A
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Flue structure for heating apparatus
|
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US1825326A
|
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Water heater
|
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US1802085A
|
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Casing for water heaters
|
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US1839236A
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Electric water heater
|
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US1718970A
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Electric heater for hot-water systems
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US1742000A
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Water-heater drain
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US1839248A
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Fluid-tight joint for water heaters
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