DWG-04 / Reference library
Reading before you buy
NZ-specific writing on the parts of the heat pump decision most installers wave away. Sizing, rebates, system types, the lot.
Guide · 6 min · 26 April 2026
How to size a heat pump for a NZ living room
The maths an installer should be doing — kW per square metre, ceiling height, insulation level, and the climate-zone uplift. Sanity-check any quote in five minutes.
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Guide · 6 min · 26 April 2026
Warmer Kiwi Homes — what's actually covered
EECA's residential subsidy scheme, plainly explained. Eligibility, the 80% (and sometimes 100%) ceiling/underfloor insulation funding, the heater grant, and the things that aren't covered.
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Guide · 5 min · 26 April 2026
Ducted vs high-wall — which for your villa?
The trade-offs nobody quite spells out. Cost, aesthetics, retrofit complexity, zoning, and the surprisingly small efficiency difference.
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