To effectively bleed a hot water system, follow this step-by-step guide:
Preparing to Bleed Your Radiators
Before you begin, gather the necessary tools and prepare your workspace:
- Container: You'll need a container to catch the water that will be released.
- Towel: Keep a large towel handy to absorb any spills.
- Radiator Key or Screwdriver: These are necessary to open the bleed valve on your radiators.
Step-by-Step Bleeding Procedure
The following steps will guide you through bleeding your hot water system, starting with the radiator closest to the boiler:
-
Locate the Radiator Closest to the Boiler: Begin the process with the radiator that is closest to your boiler, as this is where air is most likely to accumulate.
-
Close the Radiator Tap: Turn the radiator valve (the one that controls the flow of water into the radiator) to the fully closed position. This stops the flow of hot water.
-
Position the Container: Place your container directly beneath the bleed valve (usually found at the top of the radiator).
-
Ready Your Tools: Get your radiator key or screwdriver ready to open the bleed valve.
-
Open the Bleed Valve: Place your key or screwdriver on the bleed tap and slowly turn it anti-clockwise. You should hear air escaping.
- Important: Only turn the valve slightly.
- Listen: Initially, you'll hear air escaping. Once you start to see a consistent flow of water without air bubbles, the radiator is bled.
- Monitor: Watch the water and be prepared to tighten the bleed valve if water comes out.
-
Close the Bleed Valve: Once water instead of air comes out, close the bleed valve clockwise. Do not over-tighten.
-
Repeat for Other Radiators: Continue this procedure for each radiator in your home, moving from the radiator closest to the boiler to the furthest.
-
Check System Pressure: After bleeding, the system pressure may drop. You might need to refill the system with water to the recommended pressure indicated in your boiler's manual.
Additional Tips for Effective Bleeding
- Start with the Closest Radiator: Always start with the radiator closest to the boiler and proceed to the furthest.
- Be Patient: Sometimes it takes a little while to get all the air out.
- Check Pressure Regularly: Monitor the pressure gauge on your boiler and top up as required.
- Professional Help: If you have any issues or are not confident in completing these tasks, call a qualified plumber.
By following these steps, you can effectively bleed your hot water system, ensuring it runs efficiently.