Bleeding a vented heating system removes air trapped within the radiators, improving heating efficiency and circulation. Here's how to do it:
1. Locate the Radiator Bleed Valve
The bleed valve is usually located at the top of the radiator, often on the side. It's a small, usually square or hexagonal, valve with a small hole in the center.
2. Gather Your Supplies
You'll need a radiator bleed key, a small container to catch the water, and a towel.
3. Turn on the Heating System
Ensure your heating system is turned on and running. This will help push the air towards the bleed valves.
4. Open the Bleed Valve Slowly
Use the radiator bleed key to gently turn the valve counterclockwise. A hissing sound will indicate that air is escaping.
5. Collect the Water
As the air escapes, water will start to flow out of the bleed valve. Allow the water to flow until a steady stream of water comes out, indicating that all the air has been released.
6. Close the Bleed Valve
Once the water flows steadily, close the bleed valve by turning it clockwise until it's tight.
7. Repeat for All Radiators
Repeat the process for all radiators in your system.
8. Check for Leaks
After bleeding all radiators, check for any leaks around the bleed valves. If you find any leaks, tighten the valve or contact a professional for assistance.
9. Turn Off the Heating System
Once you've bled all radiators, turn off your heating system.
10. Observe the System
Observe your heating system for a few hours to ensure it's working properly. If you notice any issues, contact a qualified heating engineer.
Tips
- Always use a radiator bleed key specifically designed for your system.
- Be careful not to overtighten the bleed valve.
- If you're unsure about bleeding your heating system, consult a professional.
