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Assists in understanding the energy efficiency provisions in NCC Volume Two that apply to houses.

Explains how NatHERS assessments work and is an essential tool for NatHERS assessors.

Assists in understanding the energy efficiency provisions in NCC Volume One that apply to Class 2 apartment buildings.

Sets out the requirements for the design, installation and commissioning of heated water services using drinking water or rainwater or a combination thereof; includes aspects of the installation from, and including, the valve(s) on the cold water inlet to any cold water storage tank or water heater and the downstream fixtures and fittings; applies to new installations as well as alterations, additions and repairs to existing installations.