National Coverage
From Auckland to Invercargill, ALLWISE applies the correct NZS 4246 Schedule 2 inputs per zone. Filter by territorial authority to see the local thresholds.
Climate zones
Each zone changes the Schedule 2 inputs (BRANZ ALF, ΔT, target indoor temperature). The ALLWISE engine applies the correct values per address automatically.
4TAs
Auckland Council, Whangārei, Far North, Kaipara. Warmer climate, smaller heating capacity required (ΔT 12°C, target 18°C indoor).
8TAs
Wellington, Hamilton, Tauranga, Christchurch, Napier, New Plymouth, Palmerston North, Nelson. ΔT 14°C, target 19°C indoor.
4TAs
Dunedin, Invercargill, Queenstown-Lakes, Southland. ΔT 16°C, target 20°C indoor. Ceiling R-value threshold raises to R 3.3.
Territorial Authority browser
Filter by zone, or browse all 16. The right panel shows the heating inputs the ALLWISE engine applies for that TA.
Selected territorial authority
Zone 1
ΔT 12°C
Target indoor 18°C
1,700,000
Warmer climate. Auckland, Northland. BRANZ ALF 3.5, smaller heating capacity required.
Heating requirements:
Why climate zone matters
A 85 m² × 2.4 m home in Auckland (Zone 1) needs only 3.0 kW of heating. The same house in Invercargill (Zone 3) needs 3.8 kW. ALLWISE automatically applies the correct formula per address.
Sample city
Auckland
3.00 kW
Required heating capacity
Sample city
Christchurch
3.33 kW
Required heating capacity
Sample city
Invercargill
3.81 kW
Required heating capacity
16 Territorial Authorities. 3 climate zones. One platform.
