Technical resource

Technical and compliance information for installers of solar water heating, heat pump water heating and other sustainable plumbing technologies.

Solar water heating

Information for solar water heating installers. Read more.

Heat pump water heating

Information for heat pump water heating installers. Read more.

Ratings & labels

Information about MEPS and energy rating labels, ENERGY STAR, WELS, Green Star NZ and Homestar. Read more.

Publications & websites

Publications and websites with a sustainability focus. Read more.