Solid fuel water boiler - has all exhaust gas ducts issuing into primary collection chamber with only some issuing into secondary collection chamber

摘要

The water heating boiler is for burning, e.g. straw and wood, and has a cylindrical combustion chamber encased by a cover. The cover, above the combustion chamber, forms a large water magazine with a number of exhaust gas ducts. These ducts issue into a primary collection chamber on the input side of a connecting space. A secondary collection chamber is located on the output side of the combustion chamber. Some exhaust ducts issue into the combustion chamber and some into the secondary collection chamber, whilst all of them connect to the first collection chamber.