Combi-boiler-turn hot water tap on/off and the heating stops for 20secs

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  • Combi-boiler-turn hot water tap on/off and the heating stops for 20secs
  • hora
    Member

    Combi-boiler-turn hot water tap on/off and the heating stops for circa 20seconds. Then restarts again.

    Is this normal?

    Rockhopper
    Member

    Thats what mine does.

    PeterPoddy
    Member

    All 3 I’ve used, including our new Worcester Bosch CDi, all do it. 🙂

    hora
    Member

    Ah ok, I’m still mentally-shot from acquiring this house so any noise etc worries me greatly.

    Yep – I think it is just trying to catch up with itself and try to ensure it doesn’t spurt out scalding hot water.

    Stu McGroo
    Member

    hot water takes priority over central heating so when you run the hot tap, heating is switched off. after you turn the hot water tap off the burners stay on to pre-heat water ready for the next draw off, sometimes referred to as the “keep hot facility”. after a few seconds the burners will extinguish or revert back to heating mode.

    toys19
    Member

    Yeah on my worcester combi there is a diverter valve – it feeds either the heating or the hot water. Don’t think it can do both at the same time..

    yossarian
    Member

    Just moved into our new house and our new boiler won’t be installed until Thursday. Have spent a week huddled round an open fire and cooking on my camping stove.

    Running out of clothes too, and starting to smell!

    Kids don’t care though, my eldest looked a bit disappointed when told we’d all be able to wash by the weekend.

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