In Tianjin, what should I do if the heating is not hot at home?

In the annual heating season, most people in the south will not talk about it, and they can only rely on air conditioning; Dear northern readers, it is a great blessing in life to drink a cup of warm coffee with heating at home when it is snowing heavily outside; It is a great tragedy in life that the heating is not hot at the moment.

What if the heating is not hot? Now ~ let me tell you some basic knowledge about home heating (of course, the heating company can't help it if it doesn't give it to you). How to quickly judge what's wrong with the heating in the house and repair it temporarily?

First of all, the general situation of heating is divided into several types according to the different installation methods and heating equipment: floor heating, wall heating and radiator. Wall heating is low-temperature water and electric heating, so I won't say much here, mainly about floor heating and radiator.

First, floor heating

1. When the floor heating is first used or not used for a long time, the water temperature is low, the heating temperature is slow, and the outdoor temperature is low. It may take more than ten hours to reach the ideal temperature. Too long heating time leads consumers to mistakenly think that it is a problem of floor heating. This is not the quality problem of floor heating itself, as long as you wait patiently for the temperature to rise in the initial heating.

2. The heat generated by floor heating is conducted from bottom to top. If there are many floor coverings, which occupy most of the room area, it will affect the heat dissipation. The effective heat dissipation area is small, which makes people mistakenly think that the floor is warm or not. This is not the quality problem of floor heating itself, as long as you wait patiently for the temperature to rise in the initial heating.

3. If the floor heating pipe is hot and return pipe is not hot, it means that there is gas in the pipe, which hinders the circulation of hot water in the loop. Open the bleeder valve on the oil-water separator until the hot water is discharged.

4. If the water supply manager is not hot, the filter may be blocked due to poor water quality, which affects the normal circulation of the system. Open the filter with adjustable wrench, clean the internal filter screen, and then put it back. If you are afraid of damaging the filter screen due to improper operation, you can also find a professional to clean it.

5. The floor is too high, or located at the heating end of the residential area, and the pipeline pressure is not high, resulting in unsatisfactory heating effect. Find a property or heating company to solve it. If it can't be solved, a circulating pump can be installed to improve the circulation of hot water and achieve the ideal effect.

6. During the use of floor heating, the pipeline will scale, with an average annual rate of 1mm, which seems insignificant and can lead to a drop of 6% in water temperature. Sludge, bacteria, algae and so on. It will appear in central heating, and if it is not treated regularly, it will even cause blockage of floor heating pipes. Looking for a professional cleaning company to clean, generally speaking, the floor heating pipeline should be cleaned once every 3-5 years, and other equipment should be cleaned before use every year.

7. Some irresponsible construction workers did not follow the drawings when installing floor heating, and expanded the coil spacing at will. During construction, the loop is uneven, and even the coil is bent to death, resulting in poor water circulation and warm floor. If the floor heating is not hot due to uneven circuits, the small valves on the water separator can be used to adjust the circulation of each circuit to make it circulate evenly and achieve ideal heating effect. But it is more troublesome to solve the problem of floor heating caused by other improper construction. Consumers are advised to verify the relevant qualifications and model projects when choosing a floor heating company, and to supervise on the spot during the installation process.

Second, the radiator

Generally speaking, the more radiators, the better the heat dissipation and the better the overall heating effect. Here, we will explain in detail the selection of heating pipes, the installation of heating and fault judgment:

1. The main heating pipe materials are aluminum-plastic pipes, PPR pipes and lead pipes.

(1) The aluminum-plastic pipe has good thermal insulation, the outer wall is not easy to be corroded, the inner wall is smooth, the water flow resistance is small, it can be bent at will, the construction is convenient, and the cost performance is high.

(2)PPR pipe has the advantages of corrosion resistance, good heat resistance, light weight, high mechanical strength, difficult scaling and long service life. Now there are PPR aluminum-plastic pipes on the market, which combine the advantages of PPR pipes and aluminum-plastic pipes.

(3) Lead pipe is an inert polymer with high temperature resistance, durability, chemical stability, plasticity, tasteless, odorless, non-toxic, non-scaling and long service life. However, PB pipe has high oxygen permeability and needs to be blocked. At present, there are oxygen-blocking PB tubes on the market.

2. The selection of the length and diameter of the heating pipe should be based on the actual situation. Generally, the thinner the pipe diameter, the longer the pipe, the greater the resistance and the lower the flow.

3. Installation of heating pipes

The heating pipe is installed with a single pipe in series, that is, the pipe, radiator and boiler are connected in series. If a local fault occurs and the whole system cannot work, the heating pipe is required to be thicker.

The heating pipes are installed in parallel, and the two pipes are divided into different paths, and each radiator can be controlled independently. The water flow balance is higher than before, which requires a short pipeline stroke.

Two heating pipes are installed in parallel, and the water flow of each group of radiators is basically the same, so the water flow balance of the whole system is the best, which not only saves heating costs, but also facilitates maintenance.

When the radiator is not hot, first of all, you should know what kind of wiring method you are. In the first case, Bian Xiao can't help you () you can only find a professional heater to get through it; In the second and third cases, we must first judge which position is blocked. The judgment method is simple. First, close the main inlet valve and outlet valve; Then you can open the large drain cover of the radiator in the bathroom and drain the water in the radiator. The drain cover is located at the following position of the radiator.

Then close the three valves of all heaters, open the main water inlet valve or the main water outlet valve, and then open the three valves one by one to see whether there is water flowing out of the toilet drain, find out which heater is blocked and causes poor water circulation, turn on the water inlet valve or the water outlet valve switch to find out whether there is water blockage or water blockage, and then turn on and off the water inlet and outlet for many times to open the blocking position; These methods still don't work, and there is nothing Bian Xiao can do. Please call the heating maintenance personnel o (﹏) o at once.

The above is Bian Xiao's understanding of heating. I wish you all a warm winter ~