Quck answer
To purge a boiler, follow these steps:
1. Turn off the power to the boiler and allow it to cool down completely.
2. Close the water supply valve to the boiler.
3. Attach a hose to the boiler’s drain valve and place the other end in a drain or bucket.
4. Open the drain valve to release any built-up pressure and water from the boiler.
5. Once all the water has drained, close the drain valve.
6. Open the water supply valve and allow water to fill the boiler.
7. Bleed the air from the system by opening the air vent valves.
8. Check for any leaks and make sure the boiler is functioning properly.
Remember to always refer to the manufacturer’s instructions for your specific boiler model.
If you are experiencing difficulties in obtaining sufficient hot water, it may be necessary to remove air from your hot water boiler. Removing air from the boiler ensures that water can flow freely. Air bubbles obstruct water flow and must be removed in order for the boiler to operate effectively.
Step 1
Open the main water feed valve to allow water to enter the boiler.
Step 2
Eliminate air from the boiler. Near or at the top of the boiler, there will be either a spring-loaded pressure valve or an adjustable nut to release the pressure. Gradually open the upper valve using your fingers or a wrench, depending on the type of valve. As the valve is opened, you will hear a hissing sound. This indicates that the air is being removed from your boiler.
Step 3
Place a bucket underneath the valve. When the hissing sound stops, water will start to pour out of the valve. Collect the water in the bucket while closing the valve using the wrench or by releasing the spring load. Once the water supply is turned off, your boiler will be free of air.
Step 4
Close the main water supply. Now that your boiler is free from the air bubbles that were obstructing it, you are ready to proceed.
