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Message: <blockquote data-quote="Steve12345" data-source="post: 426407" data-attributes="member: 28013">Thanks for all your replies and tips, it's now better but not perfect. * I reduced the high boiler pressure back down to 1.5 bar by bleeding a radiator * Checked the filling loop taps, one was very stiff to turn which made me think it was closed when it was not. This is now shut off properly resulting in a stable boiler pressure and less water being stolen from the hot water supply. Not sure why both need to be off though, surely just one closed tap is enough? * The inline tap on the cold supply for the DHW was not fully open, doing this has now increased the flow enough for the boiler to recognise a demand and to start heating * The hot flow is still poor compared to cold, but sort of working ok for now. I've only just moved in to the house so can't remember what the flow was like before, it might have been the same. Plan is to redesign the kitchen soon anyway so will need to reposition the boiler and get a professional to recheck all this.One final thing. I'm wondering if the cold supply into the boiler is still restricted in some way, resulting in a lower than expected hot water flow. Here is a photo of the pipes, there are two devices and a tap attached to cold supply, each of which looks old and worn. Is it worth me trying to replace them or can I just swap this whole length out for a straight piece of copper?    Should the tap be fully open or half way?    What does the 'dial' at the bottom do and should I be checking it?Thanks again!<img src="http://pasteboard.co/e6KWVkUN9.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /><img src="http://pasteboard.co/e6KAVNtXm.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></blockquote>

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