natHERS 6 Star Energy Rating

Nationwide House Energy Rating Scheme (NatHERS) is a star rating system which assesses the thermal performance of a dwelling. As a part of the assessment, the heating and cooling loads exerted on a dwelling are identified. The NatHERS rating is a mandatory assessment, which allows an energy efficiency standard to be followed across Australia for the thermal performance of a dwelling.   A minimum 6 Star rating is required for all residential dwellings in the state of Victoria.