I have some white fluff in my loft, not sure if its damp or mould related, but it doesn't seem to match anything I found on Google, and I just want to know if its a problem or if I can just brush it all away, any ideas?
Hi there. Sorry if I'm asking something thats been asked over and again, but every single picture I can find of a central heating schematic features a boiler with one hot pipe coming out of it. My boiler has 4 connections (one being the cold mains) - I've tracked down where most of my pipes go but I...
