If you’re considering installing a heat pump, you’ve probably wondered how much it costs to run. The good news is, when used correctly, heat pumps are one of the most energy-efficient ways to heat and cool your home in New Zealand. In this guide, we’ll break down average running costs, what affects them, and how to get the most from your investment.
Average Power Usage of Heat Pumps in NZ
The running cost of a heat pump depends on the size of the unit, the temperature settings, and how long it’s operating. On average, a standard high-wall heat pump in NZ uses about 1–2 kWh of electricity per hour when heating.
At an electricity rate of around 30 cents per kWh, that works out to roughly 30–60 cents per hour of heating. If you run your unit for six hours a day in winter, that’s about $1.80–$3.60 daily, or $54–$108 a month. Cooling in summer usually costs slightly less because the unit doesn’t need to work as hard.
Factors That Affect Running Costs
Several factors can influence how much your heat pump costs to run:
- Unit size and efficiency – Larger or less efficient, older models use more power. Choosing the right capacity for your space is key.
- Temperature setting – Every degree higher in winter (or lower in summer) increases energy use.
- Insulation quality – Poor insulation makes your heat pump work harder to maintain temperature.
- Maintenance – Dirty filters or blocked airflow reduce efficiency. Regular maintenance helps keep costs down.
- Usage habits – Leaving the unit running all day, or constantly changing settings, can increase power bills.
How to Lower Your Monthly Energy Bill
With smart use and care, you can minimise running costs:
- Set the temperature sensibly – Aim for 18–20°C in winter and 22–24°C in summer.
- Use the timer function – Schedule the unit to turn on before you wake up or get home, rather than leaving it running.
- Keep filters clean – Clean every 3 months for optimal airflow.
- Close doors and curtains – Help retain warm or cool air in the rooms you’re using.
- Service annually – A professional service keeps your unit performing efficiently year-round.
Heat Pumps vs Other Heating Options
Compared to traditional heating, heat pumps are far more cost-effective:
- Electric heaters – Can cost 3–4 times more to heat the same space.
- Gas heating – Often more expensive per unit of heat, plus higher emissions.
- Wood burners – Cheap to run if you have free or low-cost wood, but less convenient and not ideal for cooling.
A quality wall-mounted heat pump offers both heating and cooling in one system, making it a smart, year-round investment.
Maximum comfort, minimal expense
Heat pumps are one of the most affordable and efficient ways to control your home’s temperature, with running costs as low as a few dollars a day. By choosing the right size and model, using it wisely, and keeping it well maintained, you’ll enjoy maximum comfort for minimal expense.
Get a quote on the most efficient system for your home. Albany Heat Pumps will match you with the perfect unit for your budget, lifestyle, and long-term savings goals.
