The Publicly Available Specification (PAS) for high temperature heat pumps is intended to help reduce information barriers around the uptake of efficient, low-emission technologies, that can be used to generate hot water in the residential, commercial and industrial sectors.

This 2021 PAS is based on a review of available heat pump/vapour compression international standards, including the methodology in AS/NZS 4234:20XX 2021 Heated water systems – Calculation of energy consumption, recently released for public consultation. This PAS is under review and an updated version will be published in 2024.

In recognition of the variety of use scenarios for high temperature heat pumps, smaller heat pumps suitable for use in applications such as heating in schools are covered along with industrial and commercial heat pump process heat applications.

The PAS is free to download via Standards New Zealand.

Download the PAS for high temperature heat pumps(external link)

View our other Publicly Available Specifications

Explore co-funding opportunities for high temperature heat pumps