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  1. R

    sleeving

    when sleeving gas pipe through walls is it ok to sleeve say 15mm copper with 22mm copper or does the sleeve have to be non metallic
  2. R

    cleaning block paving

    how can I remove cement/mortar marks from block paving?
  3. R

    Chrome Plated Copper with Pushfit fittings

    definitely not a good idea. even when pipe ends are roughened fittings can blow off
  4. R

    Fan Flue Terminations

    excuse the ignorance, but what are these divertor kits then?
  5. R

    worcester 280 no dhw

    changed diverter vale. all ok. many thanks guys :D
  6. R

    worcester 280 no dhw

    arm on diverter valve is not moving. stuck in position b. yes it does fire up when ch off, but no hot water
  7. R

    worcester 280 no dhw

    280 works fine in ch mode but when hot tap opened boiler fires but nothing through plate heat exchanger. diverter valve? if so are they easy to change
  8. R

    by pass

    exactly what is a by pass on a central heating system (combi)? is it simply a case of joining the flow and return pipes somewhere?
  9. R

    air pressure switch

    how do i check an air pressure switch is working on a combi? is it sufficient to blow down tubes and listen for click?
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