Pre-filled for NCC zone 1 (Hot Humid, 160 W/m²). Covers Darwin, Cairns, Broome, Townsville (north). Enter your rooms for an instant cooling load estimate and ducted unit recommendation.
In climate zone 1, Australia's hottest and most humid region, ducted air conditioning works hardest. The 160 W/m² load factor reflects high solar gains and latent heat from humidity. Systems here typically run at full capacity for 6+ months of the year, so correct sizing and duct design is critical to comfort and energy efficiency.
Once you have your total L/s from this calculator, the next step is duct layout design. neuralduct auto-sizes every duct against AS 4254.2 velocity limits, validates the NCC J6 friction rate, and produces a compliant PDF for handover — all in the browser, free to try.