Why isn't the radiator hot? Analysis of popular issues on the Internet in the past 10 days
As temperatures continue to drop in winter, radiators that are not hot have become a hot topic on the Internet recently. This article combines the data from social media, home forums and maintenance platforms in the past 10 days to systematically analyze the common causes and solutions of radiators not heating up.
1. Network-wide popularity data statistics (last 10 days)
| platform | Amount of related topics | High frequency keywords |
|---|---|---|
| 128,000 items | #radiatorisnothot#, #heatingcomplaint# | |
| Douyin | 32,000 videos | "Degassing Tutorial", "Water Temperature Detection" |
| Zhihu | 4800+ questions | "Insufficient pressure", "Pipeline blockage" |
| Station B | 1500+ maintenance videos | "Valve adjustment", "system balance" |
2. Analysis of the five main reasons why the radiator is not hot
1.Air blockage problem (42%)
The accumulation of air inside the radiator will cause the hot water to fail to circulate, resulting in the upper part not being hot. This is the most widely spread type of failure on short video platforms recently.
| Symptoms | solution | Tool preparation |
|---|---|---|
| Not hot locally | Exhaust using the bleed valve | Slotted screwdriver, water container |
| The sound of water flow is obvious | Multiple staged exhaust | Dry towel (splash-proof) |
2.Hydraulic imbalance (28%)
The lack of heat in the remote ends of multiple sets of radiators is often due to system imbalance. A recent Zhihu hot post pointed out that the valve opening needs to be adjusted: the valves of the radiators closer to the heat source should be appropriately closed.
3.Blocked pipes (17%)
Common problems in old communities, as shown in Douyin’s popular maintenance videos, can be determined through the following steps:
| checkpoint | normal state | abnormal behavior |
|---|---|---|
| water inlet valve | Uniform temperature | The proximal end is hot and the distal end is cool |
| return pipe | lukewarm | completely cold |
4.Insufficient pressure (accounting for 9%)
The central heating issue hotly discussed on Weibo, the normal pressure should be maintained at 1.5-2Bar, if it is lower than 1Bar, you need to contact the heating company.
5.Installation problems (4%)
Actual measurements by the UP owner at Station B found that installing the radiator upside down (reversely connecting the water inlet and outlet) would cause the thermal efficiency to drop by more than 60%.
3. Recent popularity list of new solutions
| Plan | heat index | Applicable scenarios |
|---|---|---|
| Intelligent temperature control valve | ★★★★☆ | Large room temperature difference |
| pipe cleaners | ★★★☆☆ | Old house more than 5 years old |
| Magnetic descaler | ★★☆☆☆ | Areas with hard water |
4. Professional advice
1. According to the Baidu Home Index, the number of reports for radiator repairs in December increased by 35% year-on-year. It is recommended to contact the property management or heating unit first.
2. Actual measurements by Xiaohongshu experts show that cleaning the filter can improve heat dissipation efficiency by 15%-20%, and the operation video has received over 100,000 likes.
3. If self-treatment fails, Meituan data shows that the response time of professional repairs has been shortened to an average of 2.8 hours.
5. Things to note
• Hot search reminder on Weibo: Discharging water without permission may violate heating regulations, and fines have been issued in many places
• Zhihu’s highly praised answer emphasized: There are differences in the processing methods of cast iron radiators and new aluminum radiators.
• Douyin Safety Warning: Be careful not to get burned by high-temperature water when operating the exhaust valve
From the above structured analysis, it can be seen that the problem of radiator not heating needs to be dealt with in a targeted manner based on specific symptoms. It is recommended that users refer to the most popular air blockage solutions to conduct self-examination first, and seek professional help in a timely manner for complex problems.
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