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    limited heat in HW & rads warm with only HW circuit on

    I have read over 40 pages of posts so far without an answer so new post. I have a 30yr old open vented fully pumped system in a 2 storey bungalow. Ideal Mexico boiler with separate CH and HW. Pump is on the return side, by the boiler on the ground floor. HW flow also goes to F&E tank via a tee...
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    Water not warm

    Fully pumped vented system with separate hot water circuit. HOT WATER ONLY setting: My boiler fires up OK first thing, but does not get the hot water up to the usual temperature. When I turned the boiler stat control, no clicks of the stat could be heard whether I turned it up or down. So I...
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    mountfield faulty throttle

    I have a self-propelled mountfield with an RV150 engine. The throttle governor assembly does not allow full throttle. It starts and runs fine between fast tickover and half revs. if I jerk the lever between low and high it revs better for a few minutes then reverts to fast crawl. Been like that...
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    Air in system and overflow from expansion tank

    Hi I am just an old amateur realising that "a little knowledge can be a dangerous thing". Could someone tell me whether there is any value in adding an open vent pipe to the cold feed on an open vented DHW fully pumped system? 30 years old system. Been having a problem with air in the system...
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