Heat Pump Advice and Guides
Straight answers from our technicians to help you plan, budget and choose.

What Size Heat Pump Do I Need? kW by Room for NZ Homes
Most bedrooms need a heat pump of about 2 to 3 kW, a typical lounge 3.5 to 5 kW and a large open-plan living area 6 kW o...
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Heat Pump Not Heating? Common Causes and Fixes
A heat pump that is not heating is most often on the wrong mode, choked by dirty filters, or in a normal defrost cycle t...
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How to Clean Your Heat Pump Filter (and When to Call a Pro)
To clean a heat pump filter, switch the unit off, lift the front panel, slide the filters out, vacuum them with a soft b...
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Home Ventilation Systems in NZ: Cost and Which Type to Choose
Home ventilation in NZ ranges from about $1,000 for an installed extractor fan to $15,000 to $20,000 for a whole-house b...
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Ducted Heat Pump Cost in NZ: Price, Running Costs and Zones
A ducted heat pump typically costs around $8,000 to $15,000 installed according to Rinnai's NZ guide, while Sustainabili...
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Best Heat Pump Settings for Winter (and What Dry Mode Does)
For winter, set your heat pump to Heat mode, not Auto, at 18 to 21 degrees, with the fan on Auto rather than Low or Quie...
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How to Stop Condensation on Windows: An Auckland Guide
To stop condensation on windows, pull three levers together: put less moisture into the air, keep rooms warmer, and move...
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Best Heat Pump in NZ: How to Choose the Right One
The best heat pump for a NZ home is the one sized correctly for the room, that still delivers its rated heat when it is ...
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Heat Pump vs Air Conditioner: What Is the Difference in NZ?
In New Zealand, a heat pump and an air conditioner are usually the same machine: a reverse-cycle split system that heats...
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What Is Heat Recovery Ventilation and Is It Worth It in NZ?
A heat recovery ventilator is a balanced ventilation system that pulls stale, damp air out of your home and brings filte...
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Heat Pump Leaking Water Inside? Causes and Fixes
A heat pump or air conditioner leaking water inside is almost always a drainage problem. The three usual causes, in orde...
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Healthy Homes Standards NZ: A Landlord's Checklist for 2026
The healthy homes standards are five minimum rules for New Zealand rentals: heating, insulation, ventilation, moisture i...
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Heat Pump Size Calculator
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Heat Pump Prices NZ
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