Ordinary heaters are filled with hot water, which can be divided into water heating and gas heating. Generally speaking, the radiator refers to water heating, that is, the circulating water is heated by a wall-hung boiler or boiler, and then linked to the radiator through a pipeline. Finally, the radiator outputs an appropriate temperature to form an indoor temperature difference, and finally the whole indoor temperature is evenly increased through thermal circulation. Warm air is hot air. As soon as the cold air comes in, it is heated into hot air by the radiator. Hot air rises and forms convection with indoor cold air. Cold air circulates near the heater and is heated into hot air. Hot air circulates in the house and the room is warm.

Overview of heating

Heating in a narrow sense refers to central heating facilities. It transports the steam or hot water generated by the boiler to the radiator (radiator) in the room or car body through the pipeline (heating pipe), radiates heat, raises the room temperature, and then flows back to the boiler for reheating cycle. It is stipulated that clean water must be used to heat water, which is beneficial to people's health. In order to protect the environment, clean water must be used for heating. Clean water must be used for heating, which is beneficial to the image of heating enterprises.

Sometimes "radiator" is also called "heating" Cities north of Huaihe River in Qinling Mountains of China (northwestern Shaanxi, northern Henan, Shandong, Hebei, Beijing, Tianjin, Shanxi, Gansu, Qinghai, Ningxia, Inner Mongolia, most of Xinjiang, Heilongjiang, Jilin, Liaoning, etc.). ) have built the city's heating pipe network, operated by the government or a company designated by the government, providing central heating services in winter. The service level, charging standards and heating start and end dates vary from place to place.

In the cities south of Qinhuai River, there is generally no city-wide heating pipe network, but there is a small-scale heating pipe network (for example, in a residential area, a campus and a factory).

Central heating has obvious benefits, good heating effect, high resource utilization rate and low average cost. The main disadvantages are: tenants have no choice but to adjust the temperature; The heating effect of high-rise residents is relatively poor, but the charges are the same; It is unfair for some households to use heating as usual (in view of this, some areas have begun to transform pipe network facilities into one valve for each household, refusing to provide heating for households with arrears).

Generalized heating

Modern equipment that uses other principles to heat is usually called heating equipment. For example:

When the air conditioner blows hot air, it can be called heating (as opposed to cold air).

Heating equipment on trains, subways, buses and airplanes, usually air conditioners or heaters. Household heating equipment with radiator appearance, such as electric heater (a kind of electric heater). The following heating equipment, usually written as heaters:

Other non-radiator household heating equipment (such as fan, heater, etc.). According to the energy used, it is generally called electric heater and natural gas heater. The following heating facilities are generally not called heating equipment, such as:

Open-air heating facilities using open flames, such as fireplaces, coal stoves, charcoal basins, etc.

Common kang in rural areas of northeast China.

Electric blanket, warm water bag and other local heating items.

Floor heating and other integral heating equipment.