Heat Pump Water Heater
Heat pump water heaters for efficient hot water
Heat a full tank of hot water while using a fraction of the power of a standard electric cylinder. Our heat pump water heater range uses heat-exchange technology to draw warmth from the surrounding air and transfer it into the tank, giving New Zealand homes reliable hot water with lower running costs. It suits both new builds and upgrades from older electric or gas systems.
How a heat pump water heater works
Instead of heating water directly with an electric element, a heat pump water heater moves heat from the air into the water. Because it transfers heat rather than generating all of it, it can deliver the same hot water for a portion of the electricity a conventional cylinder would draw. A built-in tank stores the hot water so it is ready when the household needs it.
Running costs and savings
Hot water is one of the largest energy users in a typical NZ home. A heat pump water heater can noticeably reduce that cost compared with a standard electric cylinder, with the exact saving depending on household size, local climate and your power plan. The efficiency also pairs well with rooftop solar, since the system can run during the day when generation is highest.
What size do I need?
Tank capacity should match how much hot water the household uses across a day. As a general guide:
| Household | Suggested capacity |
|---|---|
| 1 to 3 people | 170L |
| 4 to 6 people | 280L |
Our range includes 170L and 280L models, with a 280L option featuring WiFi control and R290 refrigerant. For larger or high-demand households, the 280L tank gives more buffer for back-to-back showers.
Heat pump water heater FAQs
Does a heat pump water heater work through a NZ winter?
Yes. The system is built to keep supplying hot water in cooler weather, drawing on the stored hot water in the tank during peak demand.
How does it compare with a gas or electric system?
It typically runs at a lower ongoing cost than a standard electric cylinder. If you are weighing options, compare our gas water heater range and the full water heater system collection.
Can it run with solar?
Yes. Running the heat pump during daylight hours lets it use solar generation, lowering grid power use further.
Looking at whole-home efficiency? Explore our heat pump air conditioners for heating and cooling.