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    Lounge Radiator that only works when bedroom radiator switched on.

    Hi all, Here I have an issue with my central heating and the way water flows through and returns using 10mm small bore pipe work. Now I realise that what I have is pretty old, and probably pretty sludged up and needs replacing, but despite all this before I replace I need to know whats going on...
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    drayton ZA5 2 port issue. Function of microswitches

    Ok, My issue is that the Drayton ZA5 port on the central heating circuit does not shut off , either when the correct temp has been reached on the wall thermostat or if I manually switch the heating off from the programmer. What actually happens is that the valve makes a very loud clanking...
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    Pump still running -even when CH/Hot Water off!

    Ok, Not sure what this is but have noticed that sometimes at night I can hear my pump gently humming in the background. The Ch/HW are both on timed and when I check they are both off and not calling for heat/HW. In fact even if move both the settings for Ch/HW to off the pump remains on. I...
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    radiator output differences for same size Rads?

    Is there a reason for a large differnece in output BTU's for radiators of the same style and size? Small differences I get but on a 500mmX1400mm double panel convector radiator the outputs are 6900 btu for a Prorad or 9261 btu for one of the same size and style as supplied by Compass. Any...
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    Vaillant ecoTEC plus 824 suitability

    HI! My partner has a 3 bedroomed terraced house with a loft conversion which has another bedroom (4 in total) and a shower room. She has three small children (including one diabetic) and has had no heating for a week and as such has asked local heating engineers for quotes for new combi...
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