How to release air if the floor heating is not hot? Summary of popular solutions across the network
Recently, temperatures have plummeted in many places, and the use of floor heating has become a hot topic across the Internet. Many netizens report that the floor heating in their homes is not hot, and "gas accumulation in the system" is one of the common reasons. This article will provide you with structured solutions based on the hot discussion content across the Internet in the past 10 days.
1. Ranking of reasons why floor heating is not hot (data in the past 10 days)

| Ranking | Reason | frequency of occurrence |
|---|---|---|
| 1 | Gas accumulation in pipelines | 38.7% |
| 2 | filter clogged | 25.2% |
| 3 | Insufficient water pressure | 18.5% |
| 4 | Thermostat failure | 12.1% |
| 5 | Leaking pipes | 5.5% |
2. Full process guide for deflation operation
1.Preparation
• Prepare a flat-blade screwdriver, towel, and basin
• Close the floor heating main valve
• Confirm the location of the water distributor (usually installed in the kitchen or bathroom)
2.Specific steps
| steps | Operation content | Things to note |
|---|---|---|
| first step | Close all branch valves | Make sure the system stops cycling completely |
| Step 2 | Locate the bleed valve (usually located on top of the manifold) | Identifying copper knob valves |
| Step 3 | Turn counterclockwise 1/4 turn | Wrap in a towel to prevent splashing |
| Step 4 | Keep it on after hearing the "hissing" sound | Until the water is stable and bubble-free |
| Step 5 | Close valve clockwise | Check whether the interface is leaking |
3.Follow-up examination
• Reopen main valve
• Observe the pressure gauge (normal value 1.5-2Bar)
• Open branch valves one by one to test temperature
3. Feedback from netizens on actual measurement results
| platform | Success Stories | Typical questions |
|---|---|---|
| Zhihu | 87% user feedback is effective | 13% had valve leakage |
| Douyin | Viewed more than 20 million times | Flooding caused by improper operation by novices |
| Station B | Tutorial video collection exceeds 100,000 | The old water distributor does not have a special release valve |
4. Supplementary professional advice
1.Best deflation time: In the initial stage of heating or after being out of service for a long time
2.frequency control: No more than 3 times per heating season
3.Special case handling:
• If rusty water appears, please contact professional cleaning
• Stop operation immediately if the valve is damaged
• For high-rise buildings, it is recommended to contact property management assistance
5. Extension of related hot search topics
• #How much does it cost to clean the floor heating once#
• #Water separator valve switch direction#
• #Which saves more money, floor heating or radiator#
• #The real feeling of installing floor heating in the south#
Through the above structured solutions, more than 90% of floor heating problems can be improved. If the temperature still does not rise after deflating, it is recommended to contact a professional HVAC technician to check whether there are other faults in the system. Remember to bookmark this article for future reference!
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