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  1. M

    Valve above boiler

    Hi. Please, can anyone tell me what the valve is on the rightside pipe going from the top of my boiler? (Obviously the opposite pipe on the left has a drain off valve). Out of interest, is there a way to know which is flow and which is return? For info, my boiler is in the kitchen, with the...
  2. M

    Noisy central heating system following draining and refillin

    Hello. I'm having a problem with my central heating that I hope someone can help me with, please. I have checked the wiki and forum and cant find the answer, so please forgive me if i have missed it, but I'm pretty sure I havent. In summary, I have replaced a radiator with a towel rail...
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