This tutorial provides an overview of building heating systems, how they work, and how they work. Examples of design, calculation methods and information on methods of regulation of modern systems of central and local heating are given. Examples of determination of thermotechnical indicators of enclosing structures, thermal power of hydraulic calculations of water heating systems of various types are given. Intended for students of vocational and secondary specialized education institutions in the specialties "Heat and gas supply, ventilation and air pool protection," "Sanitary and technical equipment of buildings and structures," "Maintenance and operation of residential buildings."