Hot Water Heat Pumps

Heating your water doesn’t need to burn through your power bill. With a hot water heat pump system, you can enjoy consistent, reliable hot water while using a fraction of the energy of traditional systems.
At Air Conditioning Group, we install energy-efficient hot water heat pumps across Auckland that families can count on, reducing household emissions and keeping costs down year-round.

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    Couple comparing heat pump costs on a laptop in a living room with a high wall heat pump above the sofa

    Hot Water Heat Pumps

    A reliable heat pump makes all the difference when it comes to year-round comfort, but only if it’s installed correctly. At Air Conditioning Group, we specialise in heat pump installation across Auckland, helping homeowners find the right system, fitted the right way.

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      Our Range of Hot Water Heat Pumps

      We supply and install the Mitsubishi Ecodan and AquaCore, two systems built to handle the demands of Kiwi homes year-round.

      The Ecodan suits households that want to combine hot water with space heating and cooling in a single unit, including underfloor heating and radiator setups. The AquaCore is designed for straightforward retrofits or new builds, integrating with many existing cylinders and delivering reliable hot water even in sub-zero temperatures.

      Panasonic Air Conditioning logo
      Mitsubishi Electric logo

      Why Choose A Hot Water Heat Pump?

      Water heating alone makes up around 28% of the average New Zealand power bill. Add space heating to that, and you’re looking at over 67% of your total energy use.

      Lower energy costs

      Unlike a conventional electric cylinder, a heat pump water heater draws warmth from the outside air rather than generating heat directly, which requires far less electricity to produce the same result.

      Year-round performance

      Modern air-to-water heat pumps operate efficiently even as temperatures drop, with fast tank recovery to handle peak household demand without running short.

      Reduced emissions

      A heat pump produces the same amount of hot water using around a third of the electricity of a conventional electric cylinder, making it about three times more energy-efficient.

      Smart scheduling

      Both the Ecodan and AquaCore support programmable heating cycles to take advantage of off-peak tariffs, with hot water ready when you need it. The Ecodan also includes built-in energy monitoring so you can track consumption over time.

      One system for more than just hot water

      The Mitsubishi Ecodan combines domestic hot water heating with space heating and cooling in a single outdoor unit, making it suited to underfloor heating and radiators.

      Added value to your home

      A hot water heat pump system can start reducing your water heating costs from day one. It also provides a broad appeal to energy-conscious buyers. This can offer a strong resale advantage when the time comes to sell.

      How Our Hot Water Heat Pump Installation Service Works

      A simple process from quote to installation.

      Tell us about your setup

      We assess your current water cylinder, water heating system, household size, and available space for the outdoor unit to determine the right specification.

      We recommend the right system

      Based on your home and goals, we match you to the right heat pump hot water system, suited to your usage and whether you're doing a retrofit or new build.

      Professional installation

      Our team handles the complete heat pump water heater installation to current compliance standards, connecting to your existing cylinder or supplying a new one where needed.

      Testing and handover

      We run a full test, confirm operating temperatures, and walk you through the controls and what routine maintenance involves.

      Air Conditioning Group - Auckland4.9
      Based on 58 reviews
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      Margaret Burns
      2 months ago
      We are very happy with the service and outcome. Would recommend this company. Knowledgeable and reliable..
      harry hammond
      2 months ago
      Excellent job from Matty and the team - came when they said they would, completed the job within a day and even left the place clean and tidy. 10/10 would reccomend
      Bernard Shakey
      4 months ago
      Outstanding execution. The job involved removing gas under floor ducting and replacing with heat pump ducting in our renovated villa. There were many challenges.Heat pump ducting needed to be bigger than the gas ducting and access was limited by downstairs bedroom, steel beams and the vents had to be made slightly larger. In the kitchen there was very poor access due to a structural beam in the way. The gas people just crunched up the pipe and wrapped duct tape around it. ACG custom made a tin trough to perfectly fit in the floor. The system also needed inlet vents for air and this was cleverly accessed and designed using the downstairs hallway and cupboard. All the old rubbish was taken away and the job was left spotless. The final result is much better than the gas system as we now also have cooling in the summer. This was a very complex job and I would doubt other aircon companies would have been able to complete such a skilled job. I highly recommend ACG.
      N
      6 months ago
      We needed our air con de-gassed for some other work to be done on our property. Even though Steve said they were fully booked, he went the extra mile to try to help and managed to fit us in at very short notice. The guy who came to do the job was really efficient and good. Thank you so much for the fantastic customer service!
      Margot Killoran
      9 months ago
      We had a great experience with this company and highly recommend them. Steve was responsive from start to finish, the installers were on time and professional, and the communication was excellent throughout. We’re very happy with the results and would gladly use this company again.
      Pablo Kraus
      10 months ago
      Steve and Matt were amazing at sorting out and installing AC in our commercial building. Came out with the best solution vs other guys we tried. Really easy and great communication.
      Gareth Tipene
      10 months ago
      Amazing work team, thanks a lot for the accuracy and efficiency. Highly recommended!
      Karol Guzmán
      10 months ago
      Matt
      10 months ago
      Very easy to deal with and installed to the highest standard. Very good value. Highly recommend to anyone looking at installing any Aircon systems.
      Josh
      10 months ago
      Great end to end experience from the quote through to the install. The team did a nice and tidy job with the install of both a high wall and a ducted system for us. Highly recommended!
      Nigel Bubb
      1 year ago
      Louise Wilson
      1 year ago
      Fantastic company to work with from start to finish. Communication was clear and consistent throughout the entire process, from the initial quote right through to installation. The installation team was polite, professional, and took great care to ensure everything was fitted perfectly. Couldn’t be happier with the service and the end result. Would highly recommend them.
      Natasha Pool
      1 year ago
      Highly recommend this company. Steve contacted me within an hour of asking for a quote and came out to assess the same day. The installers were prompt and did a great job. The service and communication from this company was amazing
      Laurie Muir
      1 year ago
      Great quote, excellent team, installation went very well, I'm very pleased, would certainly recommend.
      Robert Potter
      1 year ago
      Steve and the team installed heat pumps in the house the day after we settled before we moved in. Very efficient install, great communication and really easy to deal with. Would recommend to anyone needing heat pumps installed.
      Otto Gebhard
      1 year ago
      Responsive. Affordable. Quick. Steve and the team provided excellent service from start to finish. Steve came out for a quote within hours of my initial enquiry. He was patient with me bumbling my way around the old aircon and heatpump units and helped me find an economical solution to bring my heating up to Healthy Homes specification and double-checked the assessment to ensure that we chose the right wattage and capacity. Apart from its utility, the unit, a 73KW Panasonic number looks a million bucks in situ and has subtly facelifted the space on account of being a more modern, white unit. Regretfully, I have forgotten the name of the technician who came to do the installation but he was excellent and updated the circuitry which will solve some issues with tripping the previous setup had.
      Lisa Blockley
      1 year ago
      The most amazing experience. The team from start to finish was exceptional. They made the whole process so easy and we had the best experience. Steve and the team made sure our unit was best suited for our home. We are so thankful and would highly recommend. Thanks!
      Ella Henry
      1 year ago
      Great service, competent, efficient, and lovely, patient tradie!
      John Egan
      2 years ago
      Prompt service from inspection to getting quote. Installers tidy and professional. A great job all round. I highly recommended this company
      Karina Sanasaryan
      2 years ago
      I would give 10 starts to these guys if I could. Steve replied and came around to quote almost immediately after my inquiry. Our layout was a bit tricky, but he figured out the best way to position the heat pumps. On the day, Ethan and Matt turned up on time, which was already a win for me. They were professional, engaging, checkin in with me and being respectful. They worked so hard to finish the install and I couldn't be happier with the outcome. Everything looks and works perfect. Highly recommend to everyone and will be using their services again for my parent's house. Great work team 👍
      Sarah Oliveira
      2 years ago
      Great service - Steve was quick on giving an affordable quote. Installation was well considered, even in spite of our requests. If you're looking to install an aircon - these guys were quick and efficient.
      kane narraway
      2 years ago
      Had full house ducted installed this week and so far so good. Good service through and the team did a decent job on the fitting. They removed the old unit while they were at it and placed the outtake in a better location even though it was a last minute change.
      Ravi Reddy
      2 years ago
      Had a ducted unit replaced.From site visit, quotation and installation, Steve and Matt were super professional with great communication. Highly recommended. A+++
      Prajakta Pande
      2 years ago
      We bought the Diaken central heating system in August 2021. From day one, our lounge of 5 bedroom house, never gets warm enough and mostly is just cold as switched off. We requested help for few times. They attendeded once and replaced the thing and still no effect. Very hard to get in touch. Not so effective product after paying $14,000. Do not recommend.
      Julie Simpson
      2 years ago
      Had a heat pump installed today after only ordering it a week ago and I can’t rate the installers highly enough. They were punctual, friendly, communicated the process well, and cleaned up after themselves. Overall a stellar job.

      Heat Pump and Installation Options

      Beyond installation, we supply a wide selection of heat pump systems to suit different spaces and property types:

      Small bedroom in an Auckland home heated by a ducted heat pump system

      Single Room

      Installed for a single space or open-plan area.

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      The best heat pump NZ living rooms can use: a high wall unit mounted above the sofa

      High Wall

      Mounted high with the outdoor unit positioned discreetly.

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      Floor Mounted

      Low-level installation with minimal wall modification.

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      Ceiling Cassette

      Recessed ceiling installation with even airflow.

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      Multi-Split

      Multiple indoor units connected to one outdoor system.

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      Conditioner air vent grill on the wall.

      Ducted

      Installed with concealed ducting and zoning options.

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      Hot Water

      Dedicated heat pump installation for water heating.

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      Other Heat Pump Services

      Additional heating and cooling solutions available alongside installation.

      Maintenance & Servicing

      Planned servicing to keep systems running efficiently.

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      Commercial Heat Pumps

      Heating and cooling solutions for offices and retail.

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      New Builds

      Integrated heat pump solutions for new homes.

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      Hot Water Heat Pump FAQs

      The AquaCore system is designed to integrate with many existing hot water cylinders, which means a full cylinder replacement isn't always necessary.

      Whether your current setup is suitable is something we assess during the quote process.

      Unlike a conventional electric cylinder, which generates heat directly from an element, a heat pump hot water system draws warmth from the outside air using a refrigeration cycle, via a smaller fraction of the electricity to produce the same result.

      Given that water heating accounts for around 28% of the average Kiwi power bill, that efficiency difference has a real impact on running costs.

      Yes. The AquaCore system has fast cold-tank recovery and is designed to deliver reliable hot water even in sub-zero temperatures.

      The Mitsubishi Ecodan range is also engineered to perform in colder climates, with the Zubadan Series maintaining full capacity at temperatures as low as -15°C.

      Both systems in our range are made to suit New Zealand conditions year-round.

      Yes. The Ecodan range combines domestic hot water heating, space heating and cooling into one system and is suited to underfloor heating and radiators. Pool and spa heating is also possible with the right configuration.

      If you're planning to use the system for more than one application, particularly in a new build, it's worth raising that during the assessment process so we can size everything correctly.

      Couple comparing heat pump costs on a laptop in a living room with a high wall heat pump above the sofa

      Hot Water Heat Pumps

      A reliable heat pump makes all the difference when it comes to year-round comfort, but only if it’s installed correctly. At Air Conditioning Group, we specialise in heat pump installation across Auckland, helping homeowners find the right system, fitted the right way.

      Contact Us