How to put water in the radiator
With the arrival of winter, the frequency of use of radiators gradually increases, but many users report that the radiators are not hot or make loud noises. By searching the hot topics and hot content on the Internet in the past 10 days, we found that "radiator draining water" is the focus of many users. This article will introduce in detail the correct method of draining water from the radiator and provide structured data for reference.
1. Reasons why the radiator releases water

Draining water from radiators is usually done to solve the following problems:
| question | Reason |
|---|---|
| The radiator is not hot | Air or impurities accumulate in the pipes, hindering hot water circulation |
| The radiator is noisy | Air flowing in the pipe produces abnormal noise |
| The radiator is partially cold | Poor water circulation and local blockage |
2. Steps to drain water from radiator
The following are the specific steps for draining water from the radiator:
| steps | Operating Instructions |
|---|---|
| 1. Turn off the heating system | Make sure the radiator is completely cool to avoid burns |
| 2. Prepare tools | Prepare wrenches, buckets, towels and other tools |
| 3. Find the drain valve | Usually located on the bottom or side of the radiator |
| 4. Slowly open the drain valve | Turn the wrench counterclockwise and stop when you hear the sound of water flowing. |
| 5. Drain stagnant water and air | Until the water flow is stable and bubble-free |
| 6. Close the drain valve | Turn the wrench clockwise to ensure the valve is tightly closed |
| 7. Check the system | Restart the heating and see if it returns to normal |
3. Precautions
During the process of draining water, please pay attention to the following matters:
| Things to note | Description |
|---|---|
| Avoid frequent draining | Frequent water discharge may cause the system pressure to drop and affect the heating effect. |
| Prevent water leakage | When discharging water, wrap the valve with a towel to prevent water from splashing on the wall or floor |
| Professional maintenance | If the problem persists, it is recommended to contact professional maintenance personnel |
4. Frequently Asked Questions
The following are some of the issues users are most concerned about:
| question | Answer |
|---|---|
| The radiator is still not hot after turning on the water | It may be that the pipe is blocked or the system pressure is insufficient and further inspection is required. |
| The drain valve cannot be opened | It may be that the valve is corroded. It is recommended to add lubricating oil or contact a professional. |
| When water is released, the water flow is small | Check whether the valve is fully open or whether the pipe is blocked |
5. Summary
Draining water from the radiator is an effective way to solve heating problems, but the steps must be strictly followed to avoid system damage due to improper operation. If the problem cannot be solved by yourself, it is recommended to contact professional maintenance personnel in time. Through the introduction of this article, I hope it can help you better maintain your heating system and ensure the comfort of heating in winter.
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