When Bull decided that he wanted to become a plumber, it was not because he was not good at school or did not know what else to do. It was because he realised that plumbing was about much more than fixing pipes and toilets. The 19-year-old trainee explains: “Back in 2010, my parents had a ground sourceheat pump installed at our farm, and that really jumpstarted my interest in energy saving and environmental improvements. It opened my eyes and made me realise that this was also what plumbing was about, that it was actually a big part of it. Of course there are also the other things, the regular plumbing work like toilet installations and so on, but energy-optimising instalments are a big part of it because so much is happening in that area right now, so many new legal requirements, developments and needs.”