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Optimal ventilation? - Build 180(2020)

Abbreviation
Optimal ventilation?
Valid from
01/10/2020

Information provider
BRANZ Limited
Information type
BUILD article
Format
Website, PDF

Description

Conventional ventilation keeps a home sufficiently aired but has an energy cost. An option is to install a mechanical ventilation heat recovery system that ventilates a home while efficiently conserving energy.

In New Zealand homes, New Zealand Building Code clause G4 Ventilation specifies that adequate ventilation is required to be provided through a combination of natural means – with windows and openings – and mechanical ventilation. The most common pathway for compliance with G4 is natural ventilation, with supplementary extract ventilation in bathrooms, for example.

Scope

This article includes:

  • Opening windows does the job
  • Mechanical ventilation and heat recovery
  • Case study in a 100 m² house
  • Efficiency and airflow balance
  • Optimise ducting length and insulation
  • Homes often spot heated
  • Spot heating causes efficiency to drop
  • Getting the highest efficiency
For assistance with locating previous versions, please contact the information provider.
View on Information Provider website Download this resource (PDF, 787KB)
For assistance with locating previous versions, please contact the information provider.
This resource is not cited by any other resources.

Optimal ventilation? - Build 180(2020)

This document is not CITED BY any other resources:

Optimal ventilation? - Build 180(2020)

Description

Conventional ventilation keeps a home sufficiently aired but has an energy cost. An option is to install a mechanical ventilation heat recovery system that ventilates a home while efficiently conserving energy.

In New Zealand homes, New Zealand Building Code clause G4 Ventilation specifies that adequate ventilation is required to be provided through a combination of natural means – with windows and openings – and mechanical ventilation. The most common pathway for compliance with G4 is natural ventilation, with supplementary extract ventilation in bathrooms, for example.

View on Information Provider website Download this resource (PDF, 787KB)
Optimal ventilation? - Build 180(2020)
Description

Conventional ventilation keeps a home sufficiently aired but has an energy cost. An option is to install a mechanical ventilation heat recovery system that ventilates a home while efficiently conserving energy.

In New Zealand homes, New Zealand Building Code clause G4 Ventilation specifies that adequate ventilation is required to be provided through a combination of natural means – with windows and openings – and mechanical ventilation. The most common pathway for compliance with G4 is natural ventilation, with supplementary extract ventilation in bathrooms, for example.

View on Information Provider website Download this resource (PDF, 787KB)
This resource does not cite any other resources.

Optimal ventilation? - Build 180(2020)

This resource does not CITE any other resources.
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