Putting a radiator back on involves several steps to ensure it's securely mounted and properly connected to your heating system. Here's a breakdown of the process:
Step-by-Step Guide to Re-installing a Radiator
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Isolate the Radiator:
- Before you begin, you must isolate the radiator from the central heating system. This prevents water from flooding your house.
- Turn off both the radiator valves (typically located at either end of the radiator). One is usually a thermostatic valve (TRV), and the other is a lockshield valve. Close both valves tightly.
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Drain the Radiator (If Necessary):
- If you completely removed the radiator and system pressure has dropped, this step might be unnecessary. However, if there's still water in the radiator, you'll need to drain it.
- Attach a hose to the drain valve (usually at the bottom of the radiator on one side). Place the other end of the hose into a bucket or drain.
- Open the bleed valve (usually at the top of the radiator) to allow air in and facilitate drainage.
- Open the drain valve slowly to allow the water to drain. Be careful, as the water might be dirty.
- Once drained, close the drain valve.
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Inspect and Prepare the Wall Brackets:
- Check that the wall brackets are securely attached to the wall. Replace or tighten them if necessary. Use appropriate fixings for your wall type (e.g., masonry screws for brick walls).
- Ensure the brackets are level and can adequately support the weight of the radiator.
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Hang the Radiator:
- Carefully lift the radiator and hang it onto the wall brackets. Make sure it sits securely and evenly on the brackets.
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Reconnect the Valves:
- Reconnect the radiator valves to the radiator. Ensure the connections are tight to prevent leaks. You might need to use PTFE tape (plumber's tape) on the threads to create a watertight seal.
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Close the Bleed Valve and Reconnect the Water:
- Ensure the bleed valve is closed.
- Slowly open the lockshield valve first, followed by the thermostatic valve. This allows water to gradually re-enter the radiator.
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Bleed the Radiator:
- Once the radiator is full of water, use a radiator key to open the bleed valve slightly. This releases any trapped air.
- Close the bleed valve as soon as water starts to come out.
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Check for Leaks:
- Carefully inspect all connections for leaks. If you find any leaks, tighten the connections or reapply PTFE tape if necessary.
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Check System Pressure:
- Verify that your boiler's pressure is at the correct level. After opening your valves you may need to top up the pressure.
Important Considerations:
- Safety First: If you're uncomfortable working with plumbing, it's always best to call a qualified plumber.
- Valve Types: Be aware of the different types of radiator valves (TRV, lockshield) and their functions.
- System Inhibitor: When re-filling the system it is often recommended to add corrosion inhibitor to the water.
