The Benefits of Upgrading Your Heat Pump System
- Geraldine C.
- Sep 19
- 4 min read
Editor's Note: This article was initially published on September 10, 2024 and has been updated in September 19, 2025. The content has been edited for clarity, flow, and to provide the most current and relevant information.
Rising electricity costs and seasonal shifts in New Zealand mean homeowners are paying closer attention to how they heat and cool their homes. After hot water, heating and cooling is typically the biggest household energy cost. That’s why upgrading to a modern, energy-efficient heat pump can have an immediate impact on your comfort, energy bills, and long-term savings.
Since 2015, OneAir has helped Kiwi families and businesses upgrade their heating and cooling systems with expert installations and maintenance. Below, we break down the benefits of upgrading your heat pump this spring.
Why Upgrade Your Heat Pump This Spring?
Spring is the perfect season to upgrade. Demand on installers is lighter than in winter, and you’ll be ready for:
Summer cooling in just a few weeks
Reliable heating when the next cold season rolls in
Immediate energy savings, as modern units are more efficient year-round
By upgrading now, you avoid the winter rush and ensure your home is prepared for every season.
1. The Power of Energy Efficiency
Modern heat pumps are significantly more efficient than those installed 10+ years ago. Engineering improvements include:
Smarter compressors and chips that optimise performance automatically
Aerodynamic fan blade designs for improved airflow
Environmentally friendly refrigerants (R32) with lower Global Warming Potential (GWP)
Reliable heating even in colder NZ regions such as Dunedin, Canterbury, and Central Otago
Upgrading to a modern heat pump not only reduces electricity consumption but also lowers your power bills and contributes to a more sustainable environment.
2. Lower Environmental Impact
Heat pumps are already the most efficient form of heating in New Zealand. By upgrading, you:
Reduce electricity use and carbon footprint
Benefit from R32 refrigerant, which is far less harmful than older R22 or R410a gases
Align your home with NZ’s push toward sustainable, energy-efficient living
3. Enhanced Comfort and Air Quality
In spring, many households also deal with allergies and pollen. That’s where modern heat pumps shine:
Advanced filters reduce pollen, dust, and allergens
Even Heating and Cooling: Thanks to new and improved fan scroll design (some brands use aeronautical technology to improve their design), modern heat pumps are able to distribute air further and provide consistent temperature distribution throughout your home. No more cold spots or hot zones.
Improved Air Quality: Many new heat pumps come equipped with advanced filtration systems that remove allergens, dust, and other pollutants from the air, creating a healthier indoor environment for you and your family.
Quiet Operation: Newer models are engineered to operate quietly, ensuring a relaxing living space or peaceful and undisturbed sleep. Old heat pumps often produce around 35-40dB of noise on medium to low speeds, whereas new models can.
4. Support and Incentives for Kiwi Homeowners
If the upfront cost feels out of reach, there are support options available in NZ:
Warmer Kiwi Homes Programme – Government-funded subsidies covering up to 80% of the cost of insulation and approved heating systems, including heat pumps
Local Council Support – Some councils let you pay off upgrades through your rates bill
Green Loans from Banks – BNZ, ANZ, and other banks now offer low-interest or zero-interest loans for energy efficiency upgrades
Winter Energy Payment – Eligible New Zealanders can offset heating costs during colder months
These programmes make upgrading more affordable than ever.
5. Choosing the Right Heat Pump for Your Home
Not all heat pumps are the same. Choosing the right system depends on your home’s size, insulation, and layout.
High Wall Heat Pumps – Best for smaller rooms or targeted heating
Ducted Heat Pumps – Distribute heating and cooling evenly throughout larger homes
Floor Console Heat Pumps – Great for older homes with limited wall space
👉 At OneAir, our qualified HVAC professionals assess your home and recommend the system that maximises comfort, energy efficiency, and savings.
6. A Long-Term Investment in Your Home
A new heat pump should be seen as a 10–15 year investment in your home’s value, comfort, and efficiency. With proper maintenance, modern systems will keep working reliably for many winters to come—saving money while making your home healthier and more comfortable.
Ready to Upgrade Your Heat Pump?
If you are unsure if upgrading your heat pump is right for you, give us a call and have a chat. We provide free, professional advice and can even come to your home for an in-person consultation. Call us at 0800-ONEAIR (663247) or email us at hello@oneair.co.nz or book your free consultation today to get started this spring.
Frequently Asked Questions (FAQs)
1. Why is spring the best time to upgrade my heat pump in New Zealand?
Spring is ideal because installers are less busy than in winter, and you’ll be ready for both summer cooling and winter heating. Upgrading now avoids the seasonal rush and ensures year-round savings and comfort.
2. How much can I save on power bills with a new heat pump?
Modern heat pumps use up to 50% less energy compared to older models. For a typical 5kW unit, this can mean savings of around $900 per year on electricity costs, depending on your home’s size and usage.
3. Do new heat pumps help with allergies in spring?
Yes. Many modern heat pumps have advanced filtration systems that remove pollen, dust, and allergens from the air — making them especially beneficial during New Zealand’s allergy season.
4. What government support is available for upgrading my heat pump?
The Warmer Kiwi Homes programme provides subsidies of up to 80% for eligible homeowners. Some councils also offer repayment through rates, and banks are providing low-interest “green loans” to support energy-efficient upgrades.
5. How do I know what size or type of heat pump my home needs?
The right system depends on your home’s layout, insulation, and family needs. Options include high-wall units for smaller rooms and ducted systems for whole-home heating and cooling. OneAir provides free consultations to recommend the best solution for your household.
