Answer four plain-English questions and find out what size heat pump suits your home, which system type makes sense, and what it's likely to cost. Takes about 60 seconds.
Four questions. No jargon. A result in about 60 seconds.
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Your calculator answers will be sent with your enquiry so Craig knows your situation before he calls. The site visit is free and the quote is fixed-price.
The kW rating is the most important decision in choosing a heat pump. Too small and it struggles. Too big and it wastes money.
An undersized unit runs flat out trying to reach the temperature you've set. It works harder, uses more electricity, and wears out faster. You end up paying more every month in running costs.
An oversized unit heats the room too quickly and switches off before properly circulating the air. You pay more for the unit than you need to, and the heating feels uneven.
A correctly sized heat pump reaches your set temperature efficiently, runs quietly, and costs the least to operate over its lifetime. Craig does a proper heat load calculation on every site visit to confirm the size before ordering.
Auckland and North Shore sizing guide based on 2026 NZ standards. Assumes average insulation and standard ceiling height. Older homes or south-facing rooms may need the next size up.
| Room size | Typical room | Recommended size | Estimated Installed Price (inc. GST and electrical) |
|---|---|---|---|
| Up to 15m2 | Small bedroom, study | 2.5kW | $2,500 to $3,200 |
| 15 to 25m2 | Medium bedroom, small lounge | 2.5 to 3.5kW | $2,500 to $3,500 |
| 25 to 40m2 | Large living room, master bedroom | 3.5 to 5.0kW | $3,200 to $4,800 |
| 40 to 60m2 | Open plan kitchen and living | 5.0 to 7.0kW | $4,500 to $6,500 |
| Multi-room, 2 to 4 rooms | Multi-room system, one outdoor unit | Multi-room system | $7,500 to $14,000 |
| Whole home | Ducted whole-home system | Ducted, 10kW plus | $8,000 to $25,000 |