Hi

I turned my central heating on today for the first time this year. The
bathroom radiator (the highest one in the house) feels like it has more
air than water in it, but opening up the valve to bleed it doesn't seem
to have any effect. I had the combi boiler serviced during the summer
and noticed, after the engineer had left, that the pressure had gone
down from 0.6 bar to 0.1 bar. Does the pressure need increasing before
it will be able to force the air out of the top radiator? How do I do this??

Ben

Ben wrote:

Hi

I turned my central heating on today for the first time this year. The
bathroom radiator (the highest one in the house) feels like it has more
air than water in it, but opening up the valve to bleed it doesn't seem
to have any effect. I had the combi boiler serviced during the summer
and noticed, after the engineer had left, that the pressure had gone
down from 0.6 bar to 0.1 bar. Does the pressure need increasing before
it will be able to force the air out of the top radiator? How do I do this??

Ben

See below.

--
Ed Sirett - Property maintainer and registered gas fitter.
The FAQ for uk.diy is at www.diyfaq.org.uk
Gas fitting FAQ http://www.makewrite.demon.co.uk/GasFitting.html
Sealed CH FAQ http://www.makewrite.demon.co.uk/SealedCH.html

I've found that instead of draining off if overfilled you can open an
air
vent on a downstairs radiator and provided it's a fairly new radiatoryou
can
catch the
the thin gush of water in a bucket. Around a litre will reduce pressure
from, say, 2 bar to 1 bar.

Jon


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