Thanks to all for the input re my question about repositioning my floor-
standing Thorn M54 boiler.

Where the boiler was previously positioned, it had a straight, vertical
flue going up into the old chimney. (The boiler was standing in what used
to be the old kitchen fireplace.)

The flue is about 5 ft long, and made of asbestos or possibly cement &
fibre.

I now need a flue that goes vertically up for about 3 ft and then does a
90-degree bend and goes out through the house's cavity wall.

Where can I obtain a cheapish flue components that would be suitable? I
think all I need is a straight piece of 4" diameter tube, plus a right-
angle bend, and a simple flue-terminating ghizmo for the outside of the
house. Regarding the straight sections, I guess I could use the old flue,
cut into two sections (wearing a face mask in case it's asbestos).

Having said that, the flue will be fully visible in my kitchen so something
a bit nicer-looking might be prefereable if I can do it without pawning the
family jewels.

Thanks,

Al