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    boiler air pocket in a Baxi

    I'm not an expert, but I sure its gravity HW and a pumped CH system. Don't know anything about motorized valves, and I'm sure there isn't one. thanks brian108
  2. B

    boiler air pocket in a Baxi

    thanks for your reply. it doesn't seem to boil, as the problem is only evident when the boiler first lights up. I was wondering if this could be caused by an indirect cylinder? brian108
  3. B

    boiler air pocket in a Baxi

    Can anyone explain the cause of this problem?? We have a Baxi Bermuda boiler, gravity hot water and an indirect cylinder. There are seven radiators on a pumped circuit. On occasions, when the programmer switches on the hot water at 5 a.m. there is a large air pocket which leaves the...
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