How to build a brick chimney

The drawings of chimneys are standard drawings and can be found in building codes. As for how high it is, it depends on the design. The design should meet the following conditions: local topography; Characteristics of surrounding buildings; Type and chemical composition of boiler fuel; Fuel consumption of boiler; Boiler design exhaust temperature; Local climate and wind direction, etc. Brick chimneys are generally built at a slope of 1: 0.75. Chimney masonry should be carried out by professionals, which seems impossible for ordinary bricklayers. The upper mouth of a 4-ton boiler should be at least 500mm, and the height is determined by the surrounding buildings, at least higher than them.