Daikin CO₂ Hot Water Heat Pump Systems

The Daikin CO₂ Hot Water Heat Pump is a smarter, greener way to heat your household hot water.

Using natural CO₂ as its refrigerant, it draws renewable heat from the outside air and transfers it into your water — delivering the same steady, reliable hot water your family expects, while using up to 80% less energy than a traditional electric cylinder.

Every system is designed and built for New Zealand conditions, and every install we complete is backed by a full 7-year parts and labour warranty on both the heat pump and the tank.

From $10,499 incl GST, fully installed

Your Ultra Refrigeration install includes:

Removal and disposal of your existing hot water cylinder
Supply and installation of a new Daikin CO₂ Hot Water Heat Pump system
Standard plumbing and electrical connection
Full commissioning and system setup

Efficient Hot Water, Lower Running Costs

Because a heat pump moves heat rather than generating it, the Daikin CO₂ system produces the same volume of hot water for a fraction of the energy an electric or gas cylinder uses — up to 80% less, in typical conditions.

That translates directly to lower power bills, month after month, and a smaller carbon footprint at the same time.

CO₂ (refrigerant R744) is a natural, non-toxic refrigerant with an extremely low Global Warming Potential — meaning your household gets modern, efficient hot water without relying on synthetic gases or fossil fuels.

Built for New Zealand Homes, Built to Last

Daikin has engineered the CO₂ Hot Water Heat Pump around real-world Kiwi conditions — coastal air, temperature swings, and the everyday demands of a busy household.

Blue Fin Condenser — anti-corrosion coating protects against salt and weather, ideal for coastal Bay of Plenty homes
Duplex Stainless Steel Tank — highly durable and corrosion-resistant for reliable hot water, year after year
Snake Heat Exchanger — compact design that maximises heat transfer in a smaller footprint
Swing Compressor — Daikin’s quiet, efficient compressor delivers consistent heating while keeping energy use low
Water-resistant housing — sealed components suit garages, utility rooms, and semi-outdoor spaces
Accessible service points — designed so ongoing maintenance is quick and straightforward

Smart Features, Simple Control

Heat Boost Mode — Activates a second heat cycle when demand spikes, delivering faster recovery for back-to-back showers or a busy household, then automatically returns to efficient everyday operation.

Integrated LCD Display — A clean, built-in screen shows real-time temperature, active mode, and your schedule at a glance, so you can adjust settings quickly without needing an external controller.

Programmable Schedule Timer — Line up heating cycles with your off-peak power rates or your household’s daily routine, so you’re only heating water when it makes sense — reliable savings, day after day.

Vacation Mode — Heading away? Vacation Mode pauses normal heating to save energy, while still running anti-freeze and anti-legionella cycles to keep the system healthy, then resumes automatically before you’re back.

Child Lock — Locks the control panel to prevent accidental changes to temperature or operating mode — real peace of mind for families with curious little ones or busy shared spaces.

Low-Impact Refrigerant (R744) — Natural CO₂ refrigerant with an extremely low Global Warming Potential. Safe, non-toxic, and ready for New Zealand’s shift toward cleaner, more sustainable home heating and hot water.

Why Install Your Altherma System with Ultra Refrigeration?

Hot water heat pumps reward careful sizing, sensible placement, and clean plumbing and electrical work — and that’s where our team makes the difference.

Trade-qualified engineers — Refrigeration, Air Conditioning, and Electrical, all in-house
Licensed Refrigerant Handlers — every install done to code
Local knowledge — we understand Bay of Plenty homes, climate, and site conditions from Waihi to Whakatāne, through to Rotorua and Te Awamutu
7-year Daikin parts and labour warranty on both the heat pump and the tank
36 months interest-free finance available, plus long-term QCard options
150+ five-star reviews on Google and Facebook

Read to Talk CO₂ Hot Water Heat Pump

We’ll walk through your home, your goals, and your budget, and recommend the right Altherma configuration for you.

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