You've just been brainwashed by the merchants.
My property has launched a new service this year: cleaning the floor heating for a fee. I thought it had been three years since I moved in, and it seemed like it was time to clean up. But after the maintenance worker of the property came to the door, he said this. The workers said that they were different from the outside merchants, they only recognized money, and they did not receive a penny of commission.
So he told me the truth: businesses that specialize in cleaning floor heating advocate that "floor heating needs to be cleaned every year", but in fact it is really unnecessary. I didn't believe in evil at the time, and insisted on cleaning it up once, but reality taught me a hard lesson.
Underfloor heating doesn't have to be cleared every year
Why do we clean up underfloor heating?
The reason is "dirty": dirty things such as sediment are blocked in the pipes, which will inevitably affect the flow of heating water, resulting in insufficient heat for floor heating.
But "annual cleaning" is really a bit exaggerated, and even I only cleaned it up in three years this time, and the interval is a bit too short - you can see the effect of cleaning the floor heating in my home▽
Seeing that there was no, it was clear water that entered, and after going around the pipe, it was still clear water that came out. This proves that the inside of the floor heating pipes is clean, and the cleaning cost is in vain.
Afterwards, the worker of the property explained to me that the frequency of cleaning of the floor heating has a lot to do with the heating pipes. Although a new house like mine has been used for three years, the outdoor pipes have not been repaired once, and naturally there is no sediment entering it, so there is no need to clean it up at all. If it is an old community, the heating pipes need to be overhauled almost every year before they need to be cleaned every year or two.
"The heating pipes that need to be cleaned all have one thing in common. ”
That is, the heating water flow will be very loud, and there will be a rattle in the pipes at ordinary times. If this happens to you in your home, you need to consider cleaning the pipes – note that this is only a "consideration", as if there is an air blockage, it can also cause loud running water.
•
Now the heating pipes are also clear, and it turns out that it is not dirty inside. The workers didn't take my money in vain, and they also helped me deflate, and I didn't have much gas. But why is the heating in my house still not hot? The worker explained: In three situations, it is useless to make any effort.
•
I. The water temperature in the house is not enough
When it came to this problem, the worker was witty: "If he doesn't burn it for you, how can your heating be hot?"
There is also the reason for the shipping distance:
The hot water in the heating station flows over a long distance, and the water temperature has already dropped, so the heating will naturally not be very hot. The straight-line distance from the heating station should not exceed 15km, and the farther away from the heating station, the lower the heating temperature in the home.
In addition, there is the problem of thermal insulation during transportation, many heating pipes are laid from the ground, and the thermal insulation effect is relatively good. However, there are still some old residential areas where the heating pipes are exposed to the air, and even if the insulation layer is thicker than the pipes, the heat loss will still be greater than that of the underground pipes.
II. Insufficient water pressure in the home
The heating water for collective heating does not have much pressure, this is to protect the transport pipes. Nowadays, there are dozens of floors in buildings, how can we let the hot water flow up? The method is secondary pressurization:
Next to the complex, there is usually a pump room, which is used to provide pressure to the heating water. The pump house is generally responsible for the property, so this is the time to reflect the importance of a good property -
Originally, 10 pumps were needed to reach the normal pressure, but the property only turned on 5 pumps in order to save electricity, resulting in a decrease in hot water pressure.
The low pressure of hot water, the slower the flow rate. The water slowly flows to the user's home, on the one hand, the heat loss during the transportation process is large, and on the other hand, the water in the heating has long been cold but there is no hot water to make up for it, which leads to insufficient temperature.
III. Privately modified floor heating/radiators
"Some users don't have hot heating in their homes, they just make their own. "Some users will change the original underfloor heating in their homes to radiators, or the radiators to underfloor heating. No matter how you change it, as long as you change it, it will be easy to lose heat.
This is because the requirements for underfloor heating and radiators are different: underfloor heating requires high pressure and low temperature, while radiators require low pressure and high temperature. The heating water supplied is the water temperature and water pressure provided according to the type of heating prepared in the blank room.
Changing it without permission will inevitably lead to an inappropriate temperature or pressure, which in turn will cause the heating to not be hot. So while there is no explicit prohibition on changing the heating without permission, even a little experienced worker will discourage you from doing so.
I asked, "Then why can the wall-hung boiler user change it back and forth?"
The workers said that it was because they did not consider the cost of heating themselves, and provided high water pressure and high water temperature. Both heating companies and property companies have to consider efficiency, so the temperature or pressure that doesn't need to be as high is lowered.
小渊丨文
Selfie + Network (Invasion and Deletion)丨Figure
#文章首发挑战赛#