I have a 8 foot section of the flow and return to the hot tank clipped to a wall in the a cold roof space (regular attic etc.). The plumber put some clips for the gas pipe below and close (2-3 cm) to these pipes.
I mentioned that it would be hard to insulate the tank pipes with the gas pipe so close - I was intending to wrap some thick insulation around these two 22 mm pipes.
He did not move the clips and so the 22 mm gas supply pipe is about
2-3 cm below the tank pipes. Is it ok to insulate all 3 pipes? Any advice appreciated.Thank you