The hot water industry in New Zealand is going through a wave of change. With energy efficiency becoming a key focus, brands such as Rheem, Rinnai, and Fisher & Paykel are unveiling a new generation of hot water systems designed to reduce energy consumption while maintaining reliable performance. As the demand for more eco-friendly home appliances rises, Econergy is also making a splash in the market with innovative and energy-efficient hot water systems in NZ.
In this blog, we’ll discuss why upgrading your hot water system can benefit you, what to consider when choosing the right system, and why Econergy is one of the top players in this space. Plus, we’ll show how Aqua Works can help you navigate this exciting transition.
Why energy efficiency is the focus now
Hot water systems are one of the highest energy-consuming appliances in the average Kiwi home. With the increasing cost of electricity and New Zealand’s commitment to reducing carbon emissions, energy efficiency has never been more critical. Today’s hot water systems are designed with innovative technology that not only reduces energy consumption but also helps homeowners save money in the long run.
One of the key developments is the rise of heat pump technology in hot water systems. Unlike traditional electric water heaters, heat pumps draw in ambient air and use it to heat water. This method is significantly more efficient — using up to 75% less electricity than standard electric systems. The result is lower utility bills and a smaller carbon footprint.
This focus on sustainability is also aligned with New Zealand’s ongoing efforts to reduce greenhouse gas emissions. So when you upgrade your hot water system to one that’s energy-efficient, you’re not just saving on electricity costs — you’re contributing to a greener, more sustainable future.
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Key players in the new generation of hot water cylinders/ heaters
Rheem, Rinnai, and Fisher & Paykel have long been household names in New Zealand, and they are now focusing on delivering high performance, energy-efficient hot water solutions:
- Rheem has been around since the 1930s and is known for its durable and reliable products. The company’s new range of heat pump hot water systems are highly energy-efficient, using renewable energy sources to heat water, making them an attractive option for eco-conscious homeowners.
- Rinnai offers both gas and electric hot water solutions, with a focus on continuous flow systems. These are energy-efficient as they only heat water when it’s needed, preventing the energy waste associated with traditional storage systems.
- Fisher & Paykel is a trusted name in the New Zealand appliance market, and their energy-efficient hot water solutions are designed to reduce power consumption while providing consistent performance.
What to consider when upgrading your hot water system
Upgrading your hot water system is a significant investment, so it is essential to make an informed decision. Here are the key factors you should consider to ensure you choose the best solution for your home.
Upgrade to energy-efficient hot water systems in NZ and cut your energy bills!
Hot water energy efficiency
Energy-efficient hot water systems are a game-changer, especially when it comes to saving money. Heat pumps, for instance, are the most energy-efficient option available, with the potential to reduce running costs by up to 75%. When considering an upgrade, check the system’s energy rating to ensure you are getting the best possible efficiency.
Size & capacity hot water System
Hot water systems come in a variety of sizes. The size you choose will depend on your household’s needs. A larger household will require a more substantial system to ensure there’s always enough hot water. At the same time, smaller homes can get away with more compact units. Choosing the right size is crucial to avoid both under and over-specification, which can lead to wasted energy or an insufficient hot water supply.
Energy source hot water
You will need to choose the energy source that best suits your home’s infrastructure. In New Zealand, we have a mix of electric, gas, and solar-powered systems. If your goal is to maximise sustainability, a heat pump system is the top choice, as it uses ambient air to generate heat. Gas systems are also a good option for those looking to lower their electricity consumption, as they can be more efficient than electric systems in certain homes.
Maintenance & longevity of HWC
Different systems come with varying maintenance needs. Gas systems, for example, require more frequent servicing. In contrast, heat pump systems may have fewer maintenance issues but require specific care in areas with extreme weather conditions. Additionally, consider the expected lifespan of the system. Some systems can last 15–20 years with the proper care, while others may need to be replaced sooner.
Installation & costs of heating system
The initial installation cost can vary significantly between systems, particularly when considering the complexity of the installation. Gas systems might require modifications to your home’s plumbing and gas lines. At the same time, heat pumps may need adequate airflow around the unit for optimal performance. However, the upfront cost should be weighed against the long-term savings. Many energy-efficient systems have lower operational costs, so it’s essential to do a cost-benefit analysis before making a final decision.
Climate considerations heat pump
New Zealand’s climate varies across regions, so choosing a hot water system designed for your area’s weather is important. Heat pumps, for example, may be more efficient in areas with moderate temperatures.
Reliability & warranty
Brands like Rheem, Rinnai, and Fisher & Paykel are known for their reliability, but it is always worth checking the warranty and support services offered by manufacturers.
Why Econergy is a game-changer
As a standout player in New Zealand’s energy-efficient hot water sector, Econergy offers homeowners exciting benefits. This way, it empower you to reduce both energy consumption and costs.
Econergy heat pumps: These systems are among the most efficient in the market, using renewable energy from the air to heat water. This makes them an excellent choice for homeowners seeking to reduce their electricity bills without compromising performance.
Sustainability focus: Econergy’s commitment to the environment is evident in its eco-friendly products. Not only are their systems energy-efficient, but they also help reduce carbon emissions, aligning perfectly with New Zealand’s environmental goals.
Tailored solutions for NZ homes: Econergy understands New Zealand’s unique climate and energy needs. Their systems are designed specifically for local conditions, ensuring optimal performance and longevity, even in areas with varying temperatures.
Reliability and affordability: Econergy systems are built to last, offering reliable and cost-effective solutions for homeowners. With a range of products suited for different budgets, Econergy ensures that everyone can access high-quality, energy-efficient solutions.
Why Aqua Works is your partner in energy-efficient hot water solutions
At Aqua Works, we understand that upgrading your hot water system can be overwhelming, especially with numerous options available. That’s why we are here to guide you every step of the way.
Whether you are considering a heat pump system from Econergy or exploring other high-quality options from Rheem, Rinnai, or Fisher & Paykel, Aqua Works offers expert advice and tailored recommendations to ensure you select the best system for your home. Our team provides professional installation and ongoing support so you can enjoy peace of mind knowing your system is running efficiently and effectively.
We are committed to offering sustainable, energy-efficient solutions that not only help you save on energy bills but also contribute to a greener future for New Zealand. Our knowledgeable staff understands the unique needs of Kiwi homes, and we’re here to help you make the right choice.
If you are ready to upgrade your hot water system, get in touch with Aqua Works today. Our team is here to help you select, install, and maintain the ideal solution for your specific needs.


The future of energy-efficient hot water systems in NZ
The hot water industry in New Zealand is undergoing rapid evolution, with a notable shift towards energy-efficient solutions. Leading brands such as Rheem, Rinnai, andFisher & Paykel, alongside innovators like Econergy, are introducing cutting-edge, sustainable systems to the market.
Upgrading to a more efficient system, such as a heat pump, solar-powered system, or gas continuous flow system, can save you up to $1,100 annually, making it a smart, financial and eco-friendly choice. With the right system, you’ll reduce your energy consumption, lower your carbon footprint, and enjoy long-term savings.
Experience bliss with a new hot water cylinder upgrade!
At Aqua Works, we make it easy to navigate this transition with expert advice, professional installation, and ongoing support. The future of hot water in NZ is energy-efficient, and we’re here to help you make the most of it.
Ready to upgrade? Contact Aqua Works on 0800 278 288 to find the perfect, cost-effective solution for your home.