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thanks for all you replys it sounds like we are all singing from the same book on this apart from the so called consultant!! who seems set on getting his own way on this point. i too have also been on the alpha course as we are a main installer of there boilers who did suggest bringing the 32mm...

can anybody tell me if the british standard regs regarding the installation of the condensation pipe from a boiler have changed and now don't permit the 22mm overflow pipe to pass through a wall to outside the property? after being an installer for the last 13years and working to a set standard...