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    Gas Law about Boilers

    Dear Friends, I am a Plumber. Would anyone know what piece of Law tells me I cannot work on a Boiler. Gorgi say that in order for you to work on Gas Appliances you need to be Gas Trained, which is right. But what if I am changing a Diverter Valve, or a Motorised valve, or a Heat...
  2. R

    Central Heating

    I have a Vaillant 240 VCW XH Combination Boiler and it is 12 years old. I have replaced the Main CH Heat Exchanger and the Diaphram including the Diverter. The problem is when the CH is on and DHW is drawn at the same time. Once DHW Tap is closed then the boiler shuts down including the...
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