New Zealand has one of the highest rates of respiratory illnesses in the world. In order to create a healthy environment for our families it is vital to ensure we have adequate ventilation in our homes.
Most New Zealand homes suffer from moisture build up that can easily be prevented and controlled. Simple mechanical extraction takes moist, foul air efficiently and quietly from your home. Heat Recovery Whole Home Ventilation Systems replace the foul air creating fresher, drier air in your home.
Performance to Exceed NZ Building Code Requirements
The Building Code G4 for ventilation says “ventilation to occupied spaces must be provided by natural ventilation” ie: 5% of floor area, or alternatively by “mechanical ventilation”. G4 1.3 Cii states:
Extract ventilation shall: “ where provided to remove moisture and other contaminants from kitchens, bathrooms, toilet spaces and laundries in housing, exhaust air to the outside at flow rates given in AS 1668.2 table B1”.
All HomeTech ventilation options exhaust air to the outside.
Improved awareness of the requirement for good ventilation in the home has also led to the additional ventilation, such as mechanical ventilation being installed in wet areas, even if these areas already comply with the Building Code under the 5% floor area rule (eg opening window). Often an opening window is not sufficient to remove moist air. Many countries insist on mechanical ventilation regardless of whether an open window is available. Although not a requirement in New Zealand, the trend to supplement open windows with mechanical ventilation is increasing.
Summarising AS1668.2 Table B1 Extract rates
Bathrooms/Toilets 25 litres/sec
Laundries 20 litres/sec
Kitchens 50 litres/sec
Create a Healthy Living Environment for your Family