OFFICIAL MAGAZINE OF
A P R I L– M AY 2 0 2 5
HOT WATER HEAT PUMPS
Changing how we heat water PAGE 50
MEDICINAL CANNABIS
Workplace safety advice PAGE 68
GET READY FOR LEAD-FREE What plumbers need to know PAGE 14
THE PRINTED HOUSE NZ’s first 3D-printed showhome PAGE 46
Software service innovation from plumber Max Semmons-Russell PAGE 24