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Using thermal mass for heating and cooling

Heavy materials are good at absorbing heat - cooling your home during the day and warming it at night.

Construction systems

There are a number to factors to consider when deciding the way your home will be built.

Heating your home

Choosing the heating system that works best for your home and family

Drains from hot water cylinder relief valves

Guidance about the function of pressure relief valves as well as how to comply with the Acceptable Solution G12/AS1.

House orientation

Ensure your house is oriented to make the most of warm sun and cooling breezes.

Exterior Design

Aside from appearance, good exterior design can reduce building costs and make the most of natural features.

Weather files for Aotearoa New Zealand

Download free Aotearoa New Zealand weather files to use in energy and hygrothermal building simulation software.

Types of insulation

Place insulation in your ceiling, under your floors, and in your walls to keep your home warm.

Passive heating

Design your home to use the sun to keep it warm and dry.

This information is published by the Ministry of Business, Innovation and Employment’s Chief Executive. It is a general guide only and, if used, does not relieve any person of the obligation to consider any matter to which the information relates according to the circumstances of the particular case. Expert advice may be required in specific circumstances. Where this information relates to assisting people: