Is the heating in your house hot? What should I do if it's not hot?

Heating "holding your breath" requires deflation.

In the early stage of heating, a large amount of air also enters the heating pipeline during water supply. If it can't be discharged in time and accumulated in the pipeline, the heating will not be hot.

Solution:

There is a manual exhaust valve behind each group of radiators, and the rotating shaft is unscrewed to exhaust air until the water flow is stable. If the screw of the heating exhaust valve has rusted to death, don't twist it rashly, lest the exhaust valve break and cause the heating hot water to gush out. Ask a professional plumber to come to the house for repair. At the same time, residents living in high-rise buildings should regularly check the heating heat, and if the heat is uneven, exhaust it in time.

The piping system is blocked and needs cleaning.

If the indoor temperature was 20 degrees last year, the indoor temperature was reduced when the gas supply in the boiler room and heat exchange station was normal. Then you can gradually judge that the radiator wall is seriously blocked and needs professional cleaning.

Solution:

Under normal circumstances, geothermal users clean pipes once every two years, and old-fashioned heating users clean them professionally once every three years.

Heating needs to be replaced after extended service.

The reason why the heating is not hot may also be that the service life of the heating is too long, the inner wall scales and the thermal resistance increases, resulting in poor water flow and rising temperature. The service life of the old radiator is about 20 years, the service life of the new radiator is about 78 years, and 10 basically reaches the limit.

Solution:

Residents should replace new heaters according to their actual conditions before their service life reaches the upper limit.

man-made causes

There are also some reasons why the heating is not hot, such as the radiator is overloaded, the drain valve is installed privately, and the circulating water pump is installed. In fact, the act of adding pumps without authorization is resolutely put an end to in the heating management regulations and is illegal.

Pay special attention to

What if the heating leaks?

If there is no valve in front of the radiator, you should immediately contact the property management unit, close the unit valve, and plug it with thick towels, rags and other items to reduce the water flow and reduce the loss and personal injury caused by hot water gushing.

If there is a valve in front of the radiator, close it as soon as possible. If the exhaust valve is found to be damaged or leaking, plug it with towels and other items. If the heating pipe leaks one after another, gently wrap the pipe with a towel or rag, leave a section in the basin to let the water flow into the basin, and then get in touch with the property as soon as possible.

Can the hot water in the radiator be used?

The hot water in the central heating pipeline is the medium for conducting heat energy in the closed circulation system under high temperature and high pressure. In order to prevent the corrosion and rust of pipes and valves and ensure the smooth circulation of water supply and backwater, a certain amount of chemicals is added to the water during heating.

Using the hot water in the radiator will not only harm the health, but also cause serious water shortage in the heating pipeline, which will make the pressure of the heating pipe network unbalanced and affect the normal heating of other residents.

Don't change the heating when decorating.

Technicians said that central heating is a systematic project. If heating is changed at will, the design parameters of heating will be changed, resulting in uneven heat distribution of radiator and affecting heating effect. Many decorators do not have HVAC expertise. After the renovation of heating facilities, it is easy to have problems such as lax interface and wrong pipeline slope direction, resulting in overheating, water leakage and gas blockage, which not only affects the heating effect, but also affects the circulation of the heating system of the whole unit.