Home Ventilation Assessment

ECA Home Ventilation Assessment – Discussion Points

On the

EECA Home Ventilation Systems Assessment

Report done for the EECA in January 2009

I will be commenting and explaining each of these points over the next few weeks.


The Need for Ventilation to maintain indoor air quality

The New Zealand Situation

Principles of Positive Pressure ventilation systems

Moisture control, airflows and ventilation

Is the roof space a good source of ventilation air?

Summary of Positive Pressure ventilation systems


Principles of balanced pressure ventilation systems

Further explanation of the Heat Recovery and the Energy Recovery Ventilation systems  РThere is a very important difference.

Heat Exchange Ventilation in purposely built new homes

– possibly low energy homes


  • Heat Pump Christchurch: Thank you for sharing your information. I've already checked the chart. I always value people who add value to the information available to educate th
  • Charles: Hi Lyn, There are a few things to cover here and as this is a public forum I'll try to cover a few of them. Firstly, a diagram showing the general
  • Lyn: We have a two storey house and need to transfer heat from living area heated by fire to lounge and other bedrooms. The trouble we are facing is ther