Abstract: Based on a combination of theoretical basis as well as the engineering practice of hot water boiler heat supply system,this thesis presents a method of determining the installation height of expansion tanks for the boiler,a method of determining water temperature,as well as a method of selecting pump head and the compact drawing of the boiler equipment layout. In addition,this thesis presents empirical values of heating system design.

Key words: atmospheric hot water boiler, expansion tank, outlet water temperature, vaporization, pump head, perfusion height, saturation pressure