Ventilation
Heat recovery ventilation: fresh air without throwing the heat, or the cool, away.
Do I need heat recovery ventilation if I have floor heating or radiators?
Floor heating warms the house but doesn't change its air. When a sealed home needs heat recovery too, and when it doesn't.
Can heat recovery ventilation filter out pollen and bushfire smoke?
Pollen, mostly. Bushfire smoke, only partly. What the filters in a heat recovery unit catch, and what to do on a smoky day.
Central or room-by-room heat recovery: which suits my home?
One ducted unit, or small pairs through the walls? Which is quieter, which suits an existing home, and where each goes wrong.
What size heat recovery unit does my home need?
It's sized by the air it moves, not by heating power. How the airflow is worked out, and which unit suits which home.
Is heat recovery ventilation noisy?
A good central system is close to silent in the rooms. Why wall units stay out of bedrooms, and how to read a noise figure.
Can heat recovery ventilation work with ducted air conditioning?
Yes, and they do different jobs. Two ways to put them together, and the roof-space trap that wastes the heat recovery.
What is heat recovery ventilation, and how does it work?
It swaps stale air for fresh and keeps most of the warmth. How it works, what goes where, and what it can't do.
How much does a heat recovery ventilation system cost in Australia, and does it pay back?
What sets the price, why the ducts matter more than the box, and an honest answer on whether it pays back in Perth.
Can I have heat recovery ventilation and a wood fire?
Yes, if the fire gets its own air. Why a sealed house changes things, and what to ask the heater installer.