3 zones · 10kW
2–3 bedroom single storey, around 130m². Living, bedrooms, rear zone.
7–8 zones · 20kW+
Two storey or 280m²+, often two indoor units to balance the levels. Ranges include the unit, ducting, grilles, zone controller, electrical and commissioning. Awkward roof access, asbestos, switchboard upgrades or a second indoor unit shift the number — we’ll tell you on site, in writing, before anything is ordered.