How to release the air when the heater is not hot?

How to release the air when the heater is not hot? Analysis and practical guide of hot topics across the Internet in 10 days

With the recent cold wave, "the heating is not hot" has become a hot topic on the Internet. According to monitoring data, the number of related discussions has exceeded 500,000 times in the past 10 days, among which "heating deflation operation" is the solution that users are most concerned about. This article will combine hot data and practical tips to provide you with a systematic solution.

1. Three main reasons why the heating is not hot (TOP3 hotly discussed on the entire Internet)

1.Air blockage problem: Accounting for 67% of the cases, air accumulation in pipes is the primary reason why the heater is not hot. The gas forms air locks in the pipes, blocking the circulation of hot water.

2.hydraulic imbalance: In multi-story buildings, 28% of users reported that the terminal heater was not hot due to uneven pressure distribution.

3.Filter clogged: After the start of the new heating season, 15% of the repair cases are related to the blockage of the household filter.

2. Guide to the whole process of heating and venting (including precautions)

Step 1: Prepare tools
• Flat-blade screwdriver (or special bleed key)
• Water container (wide mouth basin recommended)
• Dry towel (to protect against water splash)

Step 2: Position the exhaust valve
The radiator exhaust valve is usually located in the upper right corner, and the floor heating water distributor exhaust valve is at the end of the water collector. Pay attention to identify the automatic/manual exhaust valve type.

Step 3: Standardize operations
1. Close the heating valves in other rooms to maintain single-circuit circulation
2. Turn the exhaust valve 1/4 turn counterclockwise
3. Hearing a "hissing" sound means exhaust is being released.
4. Close the door immediately after seeing water flowing out.

3. Special treatment for different heating systems

1. Floor heating system exhaust
It is necessary to close the main valve first and exhaust the air one by one from the end of the water distributor. Pay attention to the pressure gauge and maintain the working pressure at 1.5-2Bar.

2. Old-fashioned cast iron heater
It is recommended to cooperate with flushing operations and use professional descaling agents to remove internal sediments and improve heat exchange efficiency.

3. Intelligent temperature control system
Some new heaters need to start the automatic exhaust process through the control panel and cannot be forced to operate manually.

4. Answers to popular questions on the entire network (data source: Q&A platform)

Warm reminder:If there is still no improvement after self-operation, it is recommended to contact a professional heating company to deal with it. Data shows that about 13% of cases where the heater is not hot require professional equipment testing and maintenance.