Flue for fireplace with forced draught - has circular opening in side wall covered by rotatable sliding plate which is moved by motor and controls degree of draught
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Gas-heated domestic hot water system - includes container with latent heat absorption medium which reheats inadequately heated water
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Air heater unit - heats air extracted from ventilator and mixes it with cooler room air
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Boiler with atmospheric burner and optimised secondary-air supply
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Heating boiler with a stepped flame-deflecting pot
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Atmospheric gas burner
DE3738623C1
Boiler with flue gas recirculation
DE3738622C1
Heating furnace with equipment for recirculating flue gas
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Tank with a closable opening
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Heating boiler for burning liquid and/or gaseous fuels
DE3517859A1
Heating boiler
DE3510974A1
Method of producing vessels, in particular hot-water tanks, and vessels of this type
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Internally finned tube for gas- or oil-heated heating boilers
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Heating boiler
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Heating boiler
DE3205132C1
Low-temperature heating boiler
DE3015377A1
Boiler for water heater - has jacket and return water passes along outside wall, mixes with heater water
