June 12, 2024


How to replace a radiator I Easy Tips 

In the UK, as well as in the rest of the world, household energy costs keep rising sharply. There are many causing factors, of which one is in your hands to change! Replacing an old, inefficient radiator with a new one is a great way to reduce energy consumption.

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An energy-efficient model can significantly lower heating costs and improve overall home comfort. As studies say, a high-efficiency heating system can easily save you $100 to $300 in heating bills.

But before we jump to the tips and tricks, let’s first define when the radiator needs to be replaced. So,

When Is It Time to Replace a Radiator?

  • If you find yourself having to fix your radiator regularly, then it’s time to get a new one.
  • Corrosion, rust and leaks indicate that your radiator is breaking down.
  • Radiators normally last 8-12 years. If your radiator is getting older or has reached this age, it may be time for a replacement.
  • If your home does not heat up as quickly or evenly as it once did, your radiator may lose efficiency.
  • If your radiator starts making a noise then it might be a signal for major problems.

5 Tips to Replace a Radiator

Replacing a radiator might seem challenging, but with the right tools and a bit of know-how, it can be a simple operation.

1. Turn off the Radiator

Turn the valves at the bottom of the radiator off and make sure the heating system is completely shut down. Let it cool down to avoid burns or other complications.

To let air enter the system, use your special bleed key and twist the radiator bleed valve in an anticlockwise direction.

2. Remove the Old One

After turning off the radiator, the fasteners holding the radiator to the valves should be gently loosened with a tool or spanner. Some remaining water may flow out, so be ready for it.

Once it is disconnected, feel free to lift it off its wall brackets. Seek assistance, if the radiator is large or heavy.

3. Set up the Installation Space

After the old radiator is removed, check the wall brackets for damage. If they are damaged or simply don’t fit, install the new brackets.

Measuring the distance between the valve inlets on the new radiator is also important. If they don’t match the existing pipework, then some adjustments may be required.

4 . Install

Attach the radiator and connect the valves to the inlet and outlet pipes.

Wrap PTFE tape around the valves’ threads. These tapes are the best, they guarantee a secure, leak-free connection.

Using a spanner, tighten the nuts. But be careful, do not overtight.

5. Fill and Bleed the New Radiator

After installing, open the valves and let the water fill the radiator. Once the radiator is filled, open the bleed valve with a radiator key. This will let go of any air that is stuck.

As soon as the water begins to flow out without bubbles, close the valve.

After turning on the heating system, thoroughly check each connection for any leaks. If required, tighten any loose connections.

Best New Radiator Installation Companies

Choosing the right company is as important as choosing the radiator as well. Mainly it’s important because of the safety, accuracy, achieving peak performance and longevity.

The company, such as The Boiler Installation Specialists Ltd, known for its professionalism and experience, provides a full variety of heating services, including radiator installation. OFTEC approved team of engineers ensures that installations are completed efficiently and to the highest standards.


Overall, replacing a radiator is an easy approach to boost your home’s heating efficiency and comfort. Following these instructions and advice will guarantee that your radiator repair goes smoothly and properly.

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