Weatherlawyer wrote:

Davao wrote:
Hi all.
I'm going to have the 22mm gas pipework to the combi re-routed
as it runs through a wall in an inconvenient position.
So I think I'll need to core drill thru with 38mm diameter
cutter to make it big enough for a piece of steel
pipe to line the hole. Is that correct?

And where can I get 6" of pipe to fit in the hole ..the steel pipe will
need a wall thickness of about 5mm ?


It currently doesn't have a steel pipe lining so thats another
reason I think it should be done again.

It's a new one on me. I hve never seen that done or heard the need. For
one reason or another, the copper needs insulating from the masonry
with tape.

If you are woried about the integrity of th wall, why not knock half a
brick or so out and fill in with concrete or somesuch? If draughts, a
very smal amount of faom filler.

I may have misread what I saw. Perhaps it was describing pipe runs
within wall cavities
or summat like that.

Thanks anyway.

Arthur