Hello -
The exhaust pipe from my gas boiler (I think this is called a flue) passes horizontally through a wall to the outside. There's a sort of steel cage fitted to the outside of the wall, presumably to stop people getting burnt by the hot gases. The "cage" is rusty and needs replacing.
Can anyone tell me what the proper name for this is and where I can buy one, preferably on-line?
I've done some searches for plausible names, but haven't found anything yet.
Thanks