Radiators Feel Cold at The Top
The radiator might need "bleeding".
When there is air trapped at the top of the radiator, the radiator feels cooler at the top than at the bottom. The answer is to release the air from the radiator and that's called "bleeding the radiator".
You need the special radiator key and then you just open the valve at the top of the radiator. Have a container ready to hold under the key because once you have released the air from the radiator water will leak out - you have to be ready to close the valve with the key as soon as that happens to avoid a mess!
You should then have warm radiators.
My husband sorts out radiator problems now but this was a good tip for me when I was single.
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