The Technical Note provides a standardised approach to rating a dwelling. It details the requirements that must be followed for a NatHERS assessment in regulation mode when demonstrating compliance with the NCC.

NatHERS Technical Note, 29 September 2023 

This version is for use with software using Chenath engine V3.22 and V3.23 only.

NatHERS Technical Note, 1 September 2022 - Superseded

This version is for use with software using Chenath engine V3.22 only.

NatHERS Technical Note, 1 June 2019 - Superseded

This version is for use with software using Chenath engine V3.21 only.

NatHERS Technical Note, 1 May 2019 - superseded

This version is for use with software using Chenath engine V3.21 only.

NatHERS Technical Note V1.2, 1 October 2014 - superseded

This version is for use with software using Chenath engine V3.13 only. See also: