the water mantle forming an integral body

Full Title

Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters (steam boilers F22B) > Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating > with water mantle surrounding the combustion chamber or chambers > the water mantle forming an integral body

Child Classifications

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• F24H 1/263
• F24H 1/28 including one or more furnace or fire tubes