Gas burner automatic air-fuel ratio regulating equipment - has thermostatic unit controlling gas valve, linked airflow control flap
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Gas fired room heater - uses primary air at atmospheric pressure and secondary air for starting
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Gas fired heater with noise damper - has spring between outer wall of heating chamber and inner wall of surrounding spaced housing
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BOX-SHAPED BURNER TUBE FOR ALL-GAS BURNERS OF GAS HEATERS
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Domestic gas fired heater - has test pipe extending from draught diverter to just under top cover to indicate lack of draught in flue
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Box shaped burner tube assembly for gas heaters - has jet tubes of specified dimensions, soldered or beaded to top jet plate with submounted perforated plate
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Gas heater exchanger design - has intermediate angled wall sectors decreasing in section upwards and baffles
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Wind protection hood for furnace flue - has a spacer ring between flue convering hood and outside wall
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WATER HEATER
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GAS STOVE
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GAS HEATER
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IGNITION BURNER FOR GAS HEATERS
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BOX-SHAPED BURNER TUBE FOR ALL-GAS BURNERS OF GAS HEATERS
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THE ROOM EFFICIENCY REGULATING THE EXHAUST GAS CONNECTION FOR GAS STOVES
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Wind crown for chimney outlets
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Heat exchanger for a gas heater
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Windshield for an outside wall heater
GB1260345A
Flue damper or cut off
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Gas stove, especially for campers
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Burner tube for the all-gas burner of a gas heater
