I have been told by my plumber and gas fitter that a gas supply pipe running to the boiler through a ceiling void nd also in twp boxed in areas, must have the spaces vented. He has described the small vents that need to be installed but try as I might I can't find them.
Does anyone know what they are called and where I might get them? (my plumber couldn't remember the name. he suggested screwfix catalogue but it's hundreds of pages long and I can't find anything that fits the description).
Graham
Does anyone know what they are called and where I might get them? (my plumber couldn't remember the name. he suggested screwfix catalogue but it's hundreds of pages long and I can't find anything that fits the description).
Graham
