Every system we install in Onehunga is sized from the floor area and number of rooms, with supply outlets in living areas and bedrooms and extract points in the kitchen, bathrooms and laundry. We balance the airflows at handover and give you a maintenance schedule, usually a yearly filter change and check.
Onehunga heat recovery: restored bungalows, motorway air and Te Papapa workplaces
A lot of Onehunga's villas and 1920s bungalows have been restored since the 1990s, and how far that restoration went decides whether heat recovery suits the house. A bungalow with new linings, insulation in the walls and ceiling and upgraded windows is tight enough for a balanced system to work well. One that still has its original sashes and an open subfloor will lose much of its air through the gaps, and better extraction is usually the smarter first spend.
Traffic is a local factor. The Southwest Motorway runs along the old waterfront, and homes near it, or near the busier roads into the Te Papapa industrial zone, pull in more grime through any outside intake. We place the intake on the side of the house facing away from the road where we can, and we expect the supply filter to need changing sooner than the usual yearly interval. Harbour wind still reaches many streets, so exhaust and intake are kept apart.
In the industrial zone, offices and staff areas are often fitted with air conditioning that only recirculates air. Adding a commercial heat recovery unit brings in fresh air for those rooms. Where a street falls under the Special Character Areas Overlay, vent hoods go on side or rear walls rather than the front. State houses in Onehunga are a middle case. Their lower ceilings keep duct runs short, and once they have been insulated they can suit a compact balanced system that supplies the bedrooms and extracts from a single bathroom and kitchen.
Local tip: If your Onehunga home backs onto a main road, plan on checking the supply filter every few months rather than once a year.
Heat Recovery Ventilation in Onehunga: Local Conditions
Central Auckland's older villas and bungalows are often too leaky for heat recovery to pay off unless they are being deeply renovated and sealed. The newer apartments and terraced homes across the isthmus are a much stronger fit.
Near the coast, a balanced system brings in fresh air without opening the house to wind and spray.
Homes in Onehunga
Onehunga's housing is mostly early villas and 1920s bungalows, many restored since the 1990s, alongside a large light-industrial area. Villas and bungalows typically have high ceilings, single-glazed windows and timber floors, and unless retrofitted, little insulation, so they need more heating capacity than a modern room of the same size. Restored homes may already have insulation, which changes the sizing. In the Onehunga and Te Papapa industrial zone, offices and staff areas need commercial air conditioning rather than residential units.
The Southwest Motorway cut the suburb off from much of its Manukau Harbour waterfront in the 1970s.
You will often see our vans near Old Māngere Bridge and Onehunga Bay Reserve on the way to a job in Onehunga. For everything else, see heat pumps in Onehunga.
How We Handle Heat Recovery Ventilation in Onehunga
We start in Onehunga by asking how the house is built and whether it is new, renovated or older. How airtight it is decides whether heat recovery is right or a simpler system will do.
Pricing: every job starts with a free in-home assessment and a written quote, with a fixed price agreed before any work starts.
Heat Recovery Ventilation Jobs We Do in Onehunga
- Airflows measured and balanced at handover
- Extract points added to windowless bathrooms
- Balanced system for a new two-storey townhouse
- Heat recovery planned into a new build
- Yearly filter change and core check
Heat Recovery Ventilation Onehunga FAQs
Is heat recovery worth it in a restored Onehunga bungalow?
If the restoration included insulation, lined walls and better windows, it usually is. If the bungalow still has its original sashes and an open subfloor, the air leaks reduce the benefit, and we would look at extraction and sealing first.
Is heat recovery ventilation worth it in an older Onehunga home?
In a leaky older home the benefit is smaller, because air escapes through gaps instead of the heat exchanger. Simpler fixes are often better value. In a tight or renovated home, it is usually a strong choice.
What is the difference between heat recovery and positive pressure ventilation?
Heat recovery systems are balanced: they bring in outdoor air and remove stale air at the same rate, passing both through a heat exchanger. Positive pressure systems push air, usually from the roof space, into the house and rely on it leaking out.