Hot Water Heat Pumps

Reliable hot water. Lower running costs. Built for New Zealand homes.

A Better Way to Heat Your Water.

Hot water heat pumps give you reliable hot water year-round using a fraction of the energy of a traditional electric cylinder. By drawing heat from the air, these systems heat your water efficiently, even in cooler temperatures. It’s a smart, eco-friendly upgrade that can cut your water heating bill by up to 70%.

8 Benefits of a Hot Water Heat Pump

We make switching to solar simple, stress-free, and fully supported from start to finish.

1. Energy Efficient

Uses up to 70% less power than traditional electric hot water systems.

2. Big Savings

Can save a family of four around $1,500 per year on power bills.

3. 24/7 Hot Water

Works reliably day or night, whenever you need it.

4. Grid or Solar

Compatible with both standard electricity and solar power setups.

5. All-Weather Ready

Operates effectively in temperatures from -5°C to 42°C.

6. Space Saving

Installed outdoors to free up space inside your home.

7. High Pressure

Delivers strong, consistent water pressure for daily use.

8. Low Maintenance

Durable design with minimal ongoing upkeep required.

302L WWK Heat Pump

302L all-in-one heat pump — efficient, reliable, and perfect for larger homes
Cuts hot water energy use by up to 74% compared to electric storage systems
Quiet operation thanks to an encased compressor
Operates in temperatures from -5°C to +42°C, with active defrost for cold climates
Compatible with solar PV systems, allowing storage of excess solar energy
Maintenance-free impressed current anode for long service life in all water conditions
Ideal for households of 3–6+ people, offering 540L of hot water at 40°C
Backed by German engineering and a 5-year warranty

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 Excellent5.0137 reviews
 5.0
 Excellent137 reviews
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      Posted on Google  
   
   John and Louisa Palairet 
 3 days ago
 
 
 Trustindex verifies that the original source of the review is Google. We have been very impressed with the whole process with Eco efficient , from the initial contact with Shaun and to completion of the installation .
The clarity of the technical explanations - much needed by this writer - and seamless installation from the courteous team was much appreciated.
Nothing was too much trouble with quick responses to any queries and the app impressive and logical even to this non techie mind.
I would certainly recommend ECOEFFICIENT  to anyone considering solar .
John Palairet
  
 
     Posted on Google  
   
   Mike Christie 
 22 days ago
 
 
 Trustindex verifies that the original source of the review is Google. We recently had Ecoefficient Solutions NZ install our new solar system and couldn’t be happier with the whole experience. From the initial consultation and advice right through to the final installation, the service was excellent. Communication was clear throughout, the team were professional and easy to deal with, and the quality of the workmanship is outstanding.

We were also really impressed with the quality of the products and equipment they use. The finished installation is extremely tidy and has been completed to a very high standard. It’s clear they take a lot of pride in their work.

We’re very happy with the system and wouldn’t hesitate to recommend Ecoefficient Solutions NZ to anyone considering solar.
  
 
     Posted on Google  
   
   Kevin England 
 24 days ago
 
 
 Trustindex verifies that the original source of the review is Google. We recently had a solar power system installed by Ecoefficient Solar and couldn’t be happier. The whole process was handled efficiently, professionally and with great communication.
As a novice, we’ve learned a lot about solar power and how to make the most of our investment. I would have no hesitation recommending and supporting this excellent local provider.
  
 
     Posted on Google  
   
   Karen Bates 
 26 days ago
 
 
 Trustindex verifies that the original source of the review is Google. Exceptional service, great contact and communication.  Felt like what we were wanting to achieve was listened to and did not try to oversell us what couldn't be done, or we didn't need. On install days the team worked really well together and had good processes in place. We would be very happy to recommend Shaun and the team at Ecoefficient. Looking forward to learning our new Solar world :) Thank to Shaun, Laura and the team.
  
 
     Posted on Google  
   
   Jude Grant 
 43 days ago
 
 
 Trustindex verifies that the original source of the review is Google. Shaun and the team have been absolutely amazing to work with. No question was too stupid, no issue was too small. From start to finish extremely happy with the solar set up we have. Looking forward to those long summer days now knowing that we are producing our own electricity. Local to Hawke's Bay was a big plus for us as well. Thanks Shaun and the team. Highly recommend Eco Efficient. 10/10
  
 
     Posted on Google  
   
   Helen Pirihi 
 48 days ago
 
 
 Trustindex verifies that the original source of the review is Google. We are very happy with our system design and install.  Throughout the entire process communication was great and everything explained thoroughly.  Special mention to the install team who endured possibly the 2 coldest days of the year on our roof! The ongoing support available post install with meter changes and app help was a key in choosing eco-efficient and has been excellent.
  
 
     Posted on Google  
   
   Michael Park 
 49 days ago
 
 
 Trustindex verifies that the original source of the review is Google. Laura, Shaun and their team are excellent.  They listen to your needs, work out your future requirements and are upfront, transparent and very professional. I would highly recommend them to anyone considering going solar.  Team were efficient, courteous and did an excellent job. Very happy.
  
 
     Posted on Google  
   
   Chris Bidwell 
 129 days ago
 
 
 Trustindex verifies that the original source of the review is Google. Thanks to Shaun and the team for our recent awesome solar installation. Everything was handled professionally and we are delighted with the result.
Cheers, Pam and Chris Bidwell
  
 
     Posted on Google  
   
   Philip Morton 
 147 days ago
 
 
 Trustindex verifies that the original source of the review is Google. Very professional team, covered all my questions and fantastic service. In particular it was great to have a solution installed for us on quite a small house. Excellent!
  
 
     Posted on Google  
   
   Steve Hughan 
 158 days ago
 
 
 Trustindex verifies that the original source of the review is Google. We chose Ecoefficient to install our solar panels, inverter and battery setup. From the initial contact, site inspection, inquiry of what we were trying to achieve, quotation, installation, inspection, and commissioning, everything has been handled with professionalism and a friendly attitude. We are so glad we went with Ecoefficient, and it feels good to support a local business. rgds, Steve & Irene