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Easy way to bleed radiators with a combi boiler?
Former Member
Posts: 1,876,323 The Mix Honorary Guru
Downstairs is lovely and warm but upstairs is not. I was going to bleed the radiator in my room and then see if the other ones upstairs need doing too - but with a combi system aren't I going to need to the repressurise the boiler after each bleed? Is there an easier way?
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Easy way to check is if the top of the radiator is colder than the bottom. If not then bleeding is unlikely to help.
If the boiler is in the kitchen, you can "hear" how hard it is working. Turn the hot tap on, then slowly turn it down until the boiler just starts to work less hard, after a moment or so that should give you the water as hot as it gets - you'll probably find it looks a little milky.
How do you mean "much" hot water? The pre-heat function only affects how long it takes for water coming through your taps to become heated. When pre-heat is off and the sytems isn't being kept warm by providing heating, then you'll have to wait longer for the hot water to become hot.. Once it *is* hot, it should remain hot.
if the water is not getting "hot enough", then it might be, as mentioned, because the weather outside is colder at the moment and the boiler has to work harder to produce the same temperature of water. You might be able to help it out by running the hot water more slowly out of the tap, so that he flow rate is lower and the boiler can deal more easily with it (though make sure it's not too slow that the boiler turns off or goes back to doing heating...)