What are the classifications of heating systems

Classification according to the heating scope:
(1) Local heating system. The heat source, piping system and heat dissipation equipment are structurally connected to form an integral heating system. It is called a local heating system. For example, stove, fire wall, fire pit, electric heating and gas heating.
(2) Central heating system. The boiler is in a separate boiler room, and the heat medium is sent to the heating system of one or more buildings through a pipeline system, which is called a centralized heating system.
(3) District heating system. A heating system that uses heat for production and living in many buildings in a boiler room is called a district heating system or a district heating system.
According to the classification of heating medium:
(1) Flue gas heating system. A heating system in which the flue gas generated when the fuel is burned is used as a heat medium to bring the heat to the heat dissipation equipment (such as fire kang, fire wall, etc.), which is called the flue gas heating system.
(2) Hot water heating system. The heating system that uses hot water as the heat medium to bring heat to the heat sink is called hot water heating system. When the water supply temperature of the hot water heating system is 95 degrees and the return water is 70 degrees, it is called a low temperature hot water heating system; when the water supply temperature is higher than 100 degrees, it is called a high temperature hot water heating system. Low-temperature hot water heating systems are mostly used in heating systems for civil buildings, and high-temperature hot water heating systems are mostly used in production plants.
(3) Steam heating system. The heating system that uses steam as the heat medium to bring heat to the heat sink is called the steam heating system. If the relative steam pressure is less than 70KPa, it is called a low pressure steam heating system; if the relative steam pressure is 70 to 300KPa, it is called a high pressure steam heating system.
(4) Hot air heating system. The heating system that uses hot air to transfer heat directly to the room is called a hot air heating system.