Recent content by conrod

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    Hot water running from vent pipe into header tank

    The engineer returned yesterday, and he converted it to a sealed system. I must admit that it was a very unnerving experience hearing the 15 year old pipes creaking upstairs as he temporarily put the pressure up to 2.5 bar, at which point the pressure relief valve in the boiler operated. 24...
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    Hot water running from vent pipe into header tank

    Thanks again "Meldrew's Mate". The plot thickens - I took the top panel off the boiler and checked which pipe the pump was connected to. The pump is at the top of the boiler, and is connected to the output (flow) pipe rather than the return pipe. Hmmm. Re the manifolds or lack of - all the...
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    Hot water running from vent pipe into header tank

    Many thanks for the speedy reply. The sequence is indeed 22mm vent, then 15mm feed from the bottom of the header tank, then the 22mm output pipe goes on to the 3-port valve. Your reply (inevitably, I guess!) raises a few other questions. 1. Should a qualified and experienced installer not...
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    Hot water running from vent pipe into header tank

    I've just had my old oil-fired boiler (a Worcester Danesmoor 12/14 - 48000 BTU) replaced by a new one (a Grant Multipass 70/90 - set at 80000 BTU) by the guy who normally does my boiler servicing. He's OFTEC registered, and has always seemed knowledgable and reliable, but I now have some...
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