Key takeaways
- One of the most common questions homeowners ask is whether it's cheaper to leave a heat pump running continuously or switch it on only when it's needed.
- The answer depends on your home, your insulation and how you use the space, but there are some general guidelines that apply to most Auckland properties.
- Unlike older electric heaters, heat pumps are designed to maintain a comfortable temperature efficiently.
- Allowing the house to become extremely cold and then trying to heat it quickly often requires more energy than maintaining a moderate temperature.
Heat Pumps Work Best at a Steady Temperature
Unlike older electric heaters, heat pumps are designed to maintain a comfortable temperature efficiently.
Allowing the house to become extremely cold and then trying to heat it quickly often requires more energy than maintaining a moderate temperature.
If You're Home All Day
If the house is occupied for most of the day, leaving the heat pump running at a sensible temperature is often the most comfortable and efficient approach.
A setting around 20-22°C is suitable for many homes during winter.
If You're Going Out
If everyone will be away for several hours, it usually makes sense to switch the unit off or reduce the temperature.
There's little benefit in heating an empty house for long periods.
Don't Set the Temperature Too High
Turning the thermostat up to 28°C won't warm the room faster.
It simply tells the heat pump to keep running until that temperature is reached, increasing energy use unnecessarily.
Keep the System Efficient
To get the best performance:
- Clean the filters regularly.
- Keep doors and windows closed while heating.
- Don't block the indoor or outdoor units.
- Arrange professional servicing each year.
A well-maintained heat pump uses less electricity and provides more consistent comfort.
When Should You Book a Service?
If your heat pump runs constantly but still struggles to maintain temperature, it may be time for a professional inspection.
Reduced efficiency can indicate dirty coils, restricted airflow or developing mechanical faults.
Frequently Asked Questions
Is it cheaper to leave a heat pump on?
If you're home for most of the day, maintaining a steady temperature is often more efficient than repeatedly heating a cold house.
What temperature should I use?
Around 20-22°C provides comfortable heating for many households.
Does servicing improve efficiency?
Yes. Regular servicing helps the system operate as efficiently as possible and may reduce running costs.
Need help with your heat pump?
Ask Holmes Services for practical advice on servicing, repairs, installation and comfort across Auckland.