A ceiling duct for waste gas/air intake pipes for calorific value equipment in buildings useful in the fire protection of buildings
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Exhaust pipe for combustion devices in buildings
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Double-walled connecting cable
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Exhaust system with multiple occupancy
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Boiler connector for exhaust systems
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Domestic chimney flue uses stacked flue elements with thin-walled ceramics inner sleeve enclosed by foamed ceramics mantle sleeve
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Fire barrier
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Shaft for chimneys or flue pipes
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Room boiler offgas and air layout has spent room air line connected to casing space round offgas vent pipe in vent shaft plus fire protection valve at spent air connection.
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Method of controlling burner systems with several burners connected to a common bridging exhaust line and to a common ventilation line
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Backflow protection for exhaust systems
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Deflection piece for an exhaust pipe of a heating system
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Air intake for an exhaust and supply air line for heating systems
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Building block with flue
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Ceiling duct for an exhaust pipe from a heating system
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Roof duct for exhaust systems from heating systems
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Pipe profile for exhaust gas systems, especially for condensing boilers
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Installation for carrying away flue gases
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Arrangement for recovering heat in heating boilers
