Are radiator bleed keys universal?
So, are radiator keys universal, or are they manufacturer or model specific? Unfortunately, there’s no one-size-fits-all. Some appliances have different sizes and types of keys and valves, and some have fittings for universal keys, so what you require depends on exactly what radiators you have installed.
How do you bleed a radiator without a key?
It depends what type of bleed screw is fitted to your radiator. For radiators with a slotted bleed screw, a simple screwdriver represents an ideal alternative to a bleed key. Just insert the screwdriver into the slot and turn it in a counter-clockwise direction to bleed the radiator.
Where do you get a radiator key?
Radiator keys can be purchased from your nearest DIY and hardware store, local plumbers merchants and national retailers such as Screwfix.
What size is a radiator bleed key?
A clock key size 12 (4.8mm) will likely be the right size for a very old radiator, though it’s worth getting keys in sizes 8 – 12 just to make sure you’ve got yourself covered. Whichever type of radiator you’ve got, it is worth investing in one or two radiator bleed keys.
Can I bleed a radiator when the heating is on?
You can’t bleed a radiator when the heating is on, as it may be too hot to touch. You could also get hot water spraying out of the radiator. Use your radiator key to turn the valve at the top of the radiator. Bleeding your radiators can cause the pressure to drop.
What happens when you bleed a radiator and no water comes out?
If no water or air comes out when you bleed the radiator, then the valve could be blocked with paint. Insert the radiator key into the bleed valve and slowly turn it anti-clockwise (a quarter of a turn should be enough). You should hear a hissing sound as the air escapes.
Where is the key to bleed a radiator?
Bleeding radiators will require a radiator key (which are readily available at most local hardware stores if you don’t have one) or a flat-blade screwdriver. At the top of the radiator at one end there will be a valve.
Why is 1 radiator in my house cold?
Why is one radiator cold when the heating is on? One cold radiator usually indicates that either there is air in the system or there is a stuck valve within that radiator. To check if the valve is stuck, you can remove the rotatable head on the TRV to reveal a raised pin beneath it.
When I bleed my radiator only air comes out?