What's the matter with the sound of water running from the radiator?
With the arrival of winter, the frequency of use of radiators gradually increases. Many users report that there is a sound of running water inside the radiator. What is going on? This article will give you a detailed analysis of the causes, solutions and related precautions of the sound of running water in radiators.
1. Common causes of the sound of running water in radiators

The sound of running water in the radiator is usually caused by the following reasons:
| Reason | Specific performance |
|---|---|
| 1. There is air in the system | Air is trapped in the radiator, causing water flow to stagnate and causing gurgling or gurgling sounds. |
| 2. The water flow rate is too fast | The power of the water pump is too large or the valve opening is too large, causing the water flow to impact the pipeline and produce noise. |
| 3. There are impurities in the pipeline | Rust or scale blocks the pipes, causing abnormal noise when water flows through them. |
| 4. The radiator is installed unevenly | The tilt of the radiator causes uneven distribution of water flow and produces the sound of running water. |
2. How to solve the problem of the sound of running water in the radiator
For the above reasons, the following measures can be taken:
| Solution | Operation steps |
|---|---|
| 1. Exhaust | Use the exhaust valve to remove the air from the radiator until the water flow is stable. |
| 2. Adjust water flow speed | Appropriately reduce the water pump power or adjust the valve opening to reduce the water flow speed. |
| 3. Clean the pipes | Have your pipes cleaned by professionals to remove rust and scale. |
| 4. Adjust the installation angle | Make sure the radiator is installed horizontally to avoid uneven distribution of water flow. |
3. Precautions to prevent the sound of running water from the radiator
In order to avoid the sound of running water in the radiator, you need to pay attention to the following points in daily use:
| Things to note | Description |
|---|---|
| 1. Exhaust gas regularly | At the beginning of heating or when it has not been used for a long time, manual exhaust is required. |
| 2. Control water flow speed | Avoid opening the valve to the maximum and keep the flow of water steady. |
| 3. Regular maintenance | Check pipes and radiators every year before the heating season and clean up impurities in a timely manner. |
| 4. Correct installation | Make sure the radiator is level when installing and avoid tilting. |
4. Does the sound of running water from the radiator affect its use?
A slight sound of running water usually does not affect the normal heating function of the radiator, but long-term abnormal noise may indicate that there is a problem with the system and needs to be investigated in time. If the following conditions occur, it is recommended to contact a professional for maintenance:
| abnormal phenomena | Possible reasons |
|---|---|
| 1. The radiator is not hot locally | Ducts are clogged or air accumulation is severe. |
| 2. The noise continues to increase | Water pump failure or pipe rupture. |
| 3. Water leakage | The radiator or pipe joint is loose. |
5. Summary
The sound of running water in the radiator is mostly caused by air, water flow speed or pipe problems, which can be solved by exhausting the air, adjusting the valve or cleaning the pipes. Paying attention to daily maintenance and correct use can effectively reduce the occurrence of abnormal noise. If the problem persists or is accompanied by other abnormalities, you should contact professionals in time to ensure the safe and efficient operation of the heating system.
I hope that the answers in this article can help you better understand the causes and solutions to the sound of running water in radiators, making winter heating more comfortable and worry-free!
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