Types of heating

Water heating is the most affordable and common types of heating systems. The heat in the heated rooms is passed hot water through are in their heaters.
Water heating system include: water heaters, heating apparatus, pipes through which hot water from the heater enters the heating apparatus, and after cooling returns back to the water heater.
The coolant in the hot water heating system is water, antifreeze or antifreeze. The use of water in a hot water heating system, especially not distilled, not very desirable, since due to the water forming a scum, which gradually clogs the pipes and radiators. Recommended for use in a water heating system antifreeze or antifreeze.

Steam heating.


In steam heating the heat carrier is water vapor. According to construction standards in residential and public buildings steam heating is forbidden.
Central heating comes from combined heat transfer working fluid (steam), which not only reduces its temperature but also condenseries on the inner walls of the heating appliances. The latent heat of vaporization (condensation), which is released at the same time, is about 2300 kJ/kg, while the cooling steam at 50 °C gives only 100 kJ/kg.

Steam boiler is the heat source in the steam-heating system.The steam extraction from the steam turbine, or pressure-reducing and cooling installation, reducing the pressure and the temperature of the steam power boilers to a safe-to-consumer settings. The heaters are radiators, convectors, finned or smooth pipe. Formed in heating appliances the condensate returns to the heat source by gravity (in closed systems) or pumped (in open systems). The vapor pressure in the system may be below atmospheric (the so-called vacuum steam system) or above atmospheric (6 ATM). Steam temperature must not exceed 130 °C[1]. The change of room temperature is done by controlling the flow of steam, and if that is not possible, periodic cessation of steam. In anticipation of the frost is sometimes necessary to pre-heat the building to use the thermal inertia (the so-called “perlop”).

Panel heating.

heat distribution systems for small house

When the panel heating heat into the room is transmitted from heated flat surfaces of heating panels, have in the walls and floor. The heating panels are made of concrete with the incorporation into it of the heating elements in the form of metal pipes through which circulating water, antifreeze, antifreeze or steam.

There is electric heating panels by using wires with high resistivity or affixed to a panel of conductive material (conductive Wallpaper, rubber). The most efficient placement of heating panels in external walls and, in particular, in door space, as this neutralizes the effect of streams flowing cold air and increases the temperature of the inner surfaces of enclosing structures. Reducing heat losses of the heating panels is achieved by a strip of insulating material (e.g., foam glass or foam).

Radiant heating

The principle of radiant heating comes from the sun. The sun’s rays penetrating through the atmosphere, heats the Earth’s surface and from the surface of the already heated air.
Similarly, from the source (the gas infrared emitter) infrared rays fall on the building envelope (floor, walls), equipment, and people. In the absorption of rays of the excitation of the molecules of matter, the acceleration of motion of these molecules and generation of heat energy. Thermal energy at the same time, in contrast to convective heating, the heated object is transferred without intermediate heat carrier.

Almost all radiated energy is converted into heat of the heated object without heat. The air in the heated space is heated by the “waste heat”, i.e. the convection of structures and objects. The microclimate produced in the workplace is very favorable for a person, as the heat from the emitters is akin to natural sunlight. The system maintains uniform temperature, thus, allows to reduce it by 2-4°C compared with that required in conventional heating. Infrared heaters do not cause movements of air that provides extra comfort. They can heat local areas and zones to the desired temperature depending on the process requirements. The use of automatic control system of gas infrared emitters can save up to 30% of gas, with its help you can easily control the climate of the room. Modern control panels are programmed to automatically maintain different temperature regimes (day, night, day off) during the week.

For heating of industrial premises systems convective heating, warm air rises to the top of the room, creating a “thermal pad”, which is overheating of the upper zone and greatly increases heat loss through the building construction and ventilation. Jobs often require additional heating. The use of radiant heating eliminates this situation: comfort temperature is created at 2.5 m from the floor.

59 Photos of the Types of heating

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