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Hi, maybe someone can shed light on this, I am at a loss ... we have a fairly new condensing gas combi boiler (worcester bosch), it has only been installed 3 month ago. Since the Christmas break I notice that the pressure drops rather quickly (from 1.5 to less than 1 in a week). I can't...

Hi, reading through all the comments here I just want to check something. We have just bought this house with an old crappy central heating system in it. There are 2 radiators, 1 up 1 down stairs, that just stay cold, the other 3 (2 down, 1 up) are fine. The boiler is upstairs and appears...