Minimum plasterboard wall thickness to bury central heating pipes?

Hi Richard The regulation is more severe about gas pipe, as a leak into cavity could build up dangerously. if the pipes supply water, the best practice is to have as little joint as possible into the wall. The best fitting solution to hide the pipes is welding fittings and pipe bending where possible. for example you could have 2 pipes connected with a curling at ceiling level, and a continuous pipe run coming out above the skirting board. this could be the safest solution, but due to the pipe rigidity most probably you would need to create a Chanel or two breaking down the plaster. Another solution is the use of plastic pipe, which required a minimal amount of fittings maybe a speed fit coupling at the ceiling level, and a speed fit elbow to connect the visible tail (Copper or Chromed Copper), emerging above the skirting. Be aware that if welding take place on the short copper pipe, after the wall is been made good, the heat generated from the torch could melt the O ring inside the buried speed fit elbow. You can not buried pipe into cement as it will corrode the pipe, but you can do it into plaster. However is best practice to have every joint exposed for inspection if welded. If the joint are compression fit, I will definitely leave them accessible for inspection and maintenance. All the best Tiziano @ MA4 Plumbers

No problem running heating pipes in a stud wall, if it’s tight reduce the pipes where they drop from the ceiling to 10mm and use something like speed fit or hep20 pipe and fittings.