Learn how to bleed radiator’s in 6 simple steps

UK Home Improvement

Learn How To Bleed Radiator’s in 6 Simple Steps

Most home-owners have the problem of their radiators getting hot on the top but not the bottom. It is something which affects every single person with radiators in their home.

There is no point in dwelling over it, better to get it sorted out sooner rather than later! Instead of picking up the phone to call the plumber, save yourself some pennies and do it yourself. There is really nothing to it all you need is a pair of hands and some common sense.

Here are some basic steps to enable you to bleed those radiators and get your central heating system working systematically once more.


Step One

Begin working on the radiator which is placed furthest away from the system. This may seem complicated but basically you need to follow the pipe work around your home and plan out what order the radiators are in. It is important to start with the radiator furthest away as this will be the one where most air has accumulated.

Step Two

Turn your central heating system on and make sure the water system is also in good working order.

Step Three

You then need to allow the system to heat up accordingly and then proceed to turn the central heating system off. This process is crucial as you are ensuring that no more air can enter into the system.

Step Four

After you have switched the system on and off your bleed key will then come in handy. (A bleed key is an item which comes with a brand new radiator) You then need to place the bleed key into the radiator valve and proceed to open the valve using the key.

Step Five

Have a bucket and cloth ready to catch any water which may try and escape.

 Step Six

You then need to start to turn the valve slowly and gradually with the key until you hear a hissing noise. Don’t be alarmed by this you are basically releasing any trapped air in the radiator. You will know when all the air has been released as water will come out of the radiator as soon as the built up air has escaped. You can now proceed to turn your heat back on!

As you can imagine many people have to endure the problem of bleeding a radiator at some point in their lives. Most people just turn to the help of a plumber but save your money for a rainy day and do it yourself. It isn’t such a hard task to complete. You should take the time to check your radiators at least once a year to make sure they are working efficiently.


By clicking "Accept All Cookies", you agree to the storing of cookies on your device to enhance site navigation, analyse site usage, assist in our marketing efforts, and for personalised advertising.

More Information Accept All Cookies