
MVHR systems extract stale air from wet rooms, supply fresh filtered air to living spaces, and recover up to 90% of the heat in the process. Essential for tight-built modern homes.
Modern Australian homes are increasingly airtight — which is great for energy efficiency but bad for air quality. CO2, humidity, VOCs from furniture and cleaning products, and cooking moisture all build up.
MVHR (Mechanical Ventilation with Heat Recovery) extracts stale air from kitchens and bathrooms, passes it through a heat exchanger that captures up to 90% of the thermal energy, and uses that energy to pre-warm or pre-cool incoming fresh air from outside.
Essential for tight-built modern homes — Passivhaus, certified high-performance builds, and any home with a high-quality envelope. Older draughty homes don't need it. We'll assess your home's airtightness before recommending.
Up to 90% of the heat in extracted stale air is recovered and used to pre-heat incoming fresh air. In a tight, well-insulated home this can cut total heating energy by 15–25% compared to natural ventilation losses.
MVHR units include F7 + G4 dual filtration that removes pollen, dust and most particulate matter. Bushfire-rated (BAL) options seal external air during smoke events. We've installed many for asthma sufferers and clients in bushfire-prone areas.