I have had to get a new boiler for my late father's rental property, which is in probate. It also needed the flue re routing as the current setup did not meet the regs.
Thought I was doing well with a professional and well recommended local plumber. The tenant informed me that there is now a copper pipe running from below the bathroom to the ground, on the front external wall- so quite conspicuous. The plumber told me this is quite OK, they had to do it to comply with regs.
I attach a picture. Any comments? Should I insist they change the pipe/ re route it? Thanks for any advice.