Building Controls Update: No.102 - Guidance for Solar Water Heaters
24 December 2009: The Department has published Guidance for Solar Water Heaters to help suppliers, installers and building consent authorities to better understand the Building Code performance criteria for solar water heaters.
It provides guidance about the installation of solar water heaters with solar collectors larger than 4m2; the durability of particular materials used for their construction and/or installation; and relaxing the inclination requirements (angle of the solar collector).
The guidance document should be read in conjunction with the Acceptable Solution for solar water heaters (G12/AS2) which came into effect in December 2007. The guidance document provides a range of options as possible performance-based solutions and helps readers to design and evaluate specific ‘performance-based’ solutions (alternative solutions) for themselves.