Calitec Hot Water Systems

29/04/2026

Have a closer look inside the demo HOT WATER CYLINDER of one of our heat pump hot water systems. To show the quality, durability, and simplicity behind every Calitec system.

All Calitec split systems are built using robust stainless steel casing, combined with high-quality components and materials.

The inner cylinder is made from high-grade 2205 duplex stainless steel, offering strong corrosion resistance. We use polyurethane insulation for optimal efficiency and heat retention.

In this video, filmed at a tradeshow, you can see the heat exchanger coil, the emergency back-up heater, as well as the magnesium anode, which helps protect the system from rust and corrosion over time.

Built to perform. Built to last.

01/04/2026

Looking at the real cost of hot water over time?

Upfront cost is only part of the story. When you compare systems over 10 years, the total cost of running your hot water becomes much more important.

As this data shows, heat pump hot water systems stand out with significantly lower running costs, making them one of the most cost-effective options in the long run.

At Calitec, we see more Kiwi households making the switch for exactly this reason: lower energy bills, better efficiency, and long-term savings.

Thinking long-term? Heat pump water heating a smart move.

* Based on data from EECA (Energy Efficiency and Conservation Authority).

19/03/2026

We all know heat pump hot water is cost-effective in the long run thanks to its efficiency and lower operating costs. Yet many people still think installing a system means a big upfront cost and never further explore the option.

There is good news! Most major NZ banks now offer low-interest (0–1%) green loans for energy-efficient upgrades. Usually added to a mortgage as a top up.

With a home energy loan, you can start saving sooner, reducing your household energy costs right from day one. In today’s uncertain energy landscape, it’s a smart and logical thing to do!

Are you considering making your home more energy-efficient? If so, now could be the ideal time to explore how green loans can help.In New Zealand, these loans are a good way for homeowners to fund eco-friendly upgrades, such as installing heat pump water heaters, solar panels, and ventilation system...

27/02/2026

A fine installation this week in Tauranga of the Calitec Heat Pump Water Heater WH-70, connected to an existing indoor hot water cylinder. Our stainless-steel unit is built to withstand the harsh NZ climate. It utilizes environmentally friendly R290 refrigerant and made it one of the most efficient systems.

29/01/2026

Kiwis need heat pump hot water systems that actually work optimally in real-world temperatures. At Calitec, we design our stainless steel split systems specifically for NZ climate conditions, from coastal homes to colder southern regions. Read more about why our WH‑70 and KP‑50 models are built for Kiwi households:

Heat pump water heaters are gaining momentum in New Zealand, and for good reason. According to a recent EECA report, hot water accounts for around 30% of household energy use, making it one of the biggest opportunities to reduce energy bills and emissions.But not all heat pump hot water systems are....

09/01/2026

Good start to 2026! 🎉 One of our long-term customers gave us a kind and genuine Google review. Thank you!

If you’d like to share your experience with Calitec, we’d be very grateful for a quick Google recommendation. Every review helps us grow and support more Kiwi families! https://g.page/r/CaLhm-_PAZzIEAI/review

22/12/2025

Of behalf of everyone at Calitec Heat Pump Hot Water Systems, we want to say a huge thank you to our customers, installers, and extended network for another successful year. Wishing you a safe, relaxed Christmas and a great start to 2026.

Note: Calitec will be open for business and support throughout this summer period except for Christmas and New Years Day.

01/12/2025

Heat pump hydronic heating is taking off in New Zealand, and for good reason! More Kiwi homeowners are discovering just how comfortable, efficient, and future-proof this style of home heating really is.

We’ve just released a new blog post that breaks it all down: From underfloor heating and radiators to fan coil units, and why heat pump hydronic systems are becoming the top choice for new builds and renovations.

At Calitec, we offer our own heat pump hydronic home systems that provide whole-home heating (and cooling!) PLUS domestic hot water, all from one efficient, stainless steel heat pump unit, designed for NZ.

If you’re planning a new build or upgrading an older heating system, check out the full blog article here:

Hydronic heating systems are becoming rapidly popular among Kiwi homeowners with growing demand for smarter, healthier and more comfortable energy-efficient heating solutions. A hydronic system offers the choice of selecting your preferred way of heating, either immersing in all-around warmth from u...

02/11/2025

Last month, we welcomed a bunch of new installers to our nationwide Calitec Installers' Network. Welcome!

It’s great to see more homeowners across NZ asking their plumbers for Calitec systems. A clear sign that heat pump water heating is becoming the go-to, energy-efficient and eco-friendly alternative to gas califonts and standard electric cylinders.

Find our installation options and full list of Calitec installers here:
https://www.calitec.nz/installers-network

Calitec is a proud New Zealand company. We design and develop our own stainless-steel split systems made for Kiwi homes, and we’re always improving them.

Unlike standard imports, our systems are built for quality and long-term performance in NZ. We work directly with plumbers to make sure they (and their customers!) get the best possible support and solutions.

If you’re a plumber interested in joining our growing network, get in touch, we’d love to hear from you!

03/10/2025

Are you considering a heat pump hot water system for your home? Choosing the right system can feel overwhelming with so many models and types available.

Check out our blog article to explore the different heat pump water heater models in NZ and discover which one is best for you. Dive in here:

Explore the main types of heat pump water heater technologies in our latest blog and discover which system best suits your needs.