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Below are four simple steps explaining how to replace a radiator. Before you begin however, make sure that you have the following equipment:

• 2 adjustable spanners
• radiator bleed key
• bucket
• drain tray
• large allen key
• pipe and cable detector
• hammer-action drill with masonry bit

1. After turning both valves off, use an adjustable spanner to slacken the capnut holding one of them to the radiator. You might need to use the second spanner to prevent it turning.

2. Place a shallow tray beneath the valve to catch water as it drains out. Open the bleed valve at the top of the radiator and loosen the capnut. Once the tray is full of water, re-tighten the capnut and empty it. Repeat until all the water has drained out and then disconnect the other valve.

3. Take the radiator off its brackets and tilt to drain any remaining water into the tray. Then stuff tissue into the other end to stop leaking water. At this point, you may need to replace the old wall brackets with the ones that came with the new radiator. Don’t forget to check for pipes and cables before drilling into the wall.

4. Use an adjustable spanner or large allen key to remove the valve connectors from the old radiator. Clean the threads with wire wool and wind PTFE tape around the threads about five times to ensure a good seal. Screw the connectors into the new radiator, making sure they are tightened fully. Now hang the radiator and connect and reset the valves, allowing water to enter the radiator. Finally, open the bleed valve about half a turn so that air escapes. Once water starts to appear, close it.

Want to know how to unblock a sink? Click here.