Gas pipe size calculation

[Dotty]

There's a long running joke on here about me being strictly commercial, John.

Hate domestic boilers with a passion

White boxed wall hung metrosexual tin foil crap!

 

[Last Plumber]

Ha ha, well I do get you. I'm probably about 70% commercial.
It Is best by far.
Something you can get your teeth into and no carpets furniture etc and no half days spent as removal men