Is there a rule of thumb sizing method for an underground MDPE gas supply pipe after the LP U16 boundary meter, the boundary meter is around 110m away from the building, it will be serving a 50kW boiler only. I am only curious as to what size the builder / RGI will need to price to make , an RGI will be carrying out all the work but one hasn't been chosen yet.
Possibly 32mm dia?
Possibly 32mm dia?