When radiators in the home seem to be performing badly ? not pumping out heat, most people will call a plumber. However, it is possible that the problem can be something as simple as trapped air, which is easily resolved with only basic equipment and no need to call an expensive professional. The best way to check if your radiators need bleeding is to touch the surface; if the bottom is warm and the top is cold, then that means there is trapped air stuck in the radiator?s pipes, preventing it from working effectively and costing you money.
Getting Started
The easiest way to bleed a radiator is to use a key to turn the valve at the top. Most DIY stores sell universal radiator keys if you don?t have any in the house, or you can always use a screwdriver if the valve has a slot in the top. The valve you are looking for will be at the top of the radiator.
Staying Clean
Before starting to bleed radiators, it is best to turn off the central heating for a while otherwise the action of opening the valve can actually suck more air into the system. Even with the central heating turned off there will still be some water in the radiator, so you need to be prepared for that when opening the valve. Keep a washing-up bowl handy to catch any drips and some old towels in case of spillages.
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