You are using an outdated browser version not supported by this website.
Click here to upgrade your browser

Energie Eco Solar Thermodynamic Domestic Water Heating

An Energie Eco domestic water heating system consists of an Eco cylinder, with its attached compressor and heat exchanger, and one or two 8kg aluminium thermodynamic panels, which are externally mounted on the roof, wall, balcony or ground. The cylinder is availabel in 250L, 300L or 500L capacity. The onel panel system compressor uses just 390watts when it runs (and only need to run intermittently) so uses minimal electricity and produces no carbon emissions. The 2 panel comprssor uses 600watts.

The system has 3 modes of operation, Eco, Boost and Auto so can provide reliable hot water for changing requirements. It is most efficient when the panel is in the sun but does not rely on the sun to operate effectively. The system produces hot water 24 hours a day, 365 days a year. Energie Eco works in all weather conditions, and even at night. No separate back-up system is required.

How Eco Works

A refrigerant liquid (R134A) passes through the thermodynamic panel gathering heat from solar radiation, environmental temperature, rain, wind and snow. This causes the refrigerant to become a hot gas which is then compressed, further increasing its temperature.

The heat is then transferred to the water via a heat exchanger coil which is wrapped around the outside of the cylinder. The gas is decompressed and condenses back into a liquid which returns to the panel, and the process repeats.

Key Features
  • Save up to 85% of hot water heating cost
  • Manufactured by European brand leader with over 30 year's experience
  • No maintenance required
  • Two lightweight solar panels (8kg each)
  • No building consent normally required
  • Panel does not boil or freeze
  • Expected minimum 25-year life
  • Quick installation (normally within a day)
  • Highest quality engineering
  • All systems are designed and installed to NZ building code
  • Products approved and certified to AS/NZS 2712:2007
Scope of Use
  • Energie Eco hot water systems are suitable for use in any type of residential building where hot water is required
  • It can be used for both new builds and in existing houses as a replacement cylinder
  • There are 2 models suitable for small to medium houses, or for between 5-9 people
Medium to Large Homes: 5-9 People
Product: Cylinder: Panels:
ECO 250is 250 litre stainless steel 1 or 2
ECO 300is 300 litre stainless steel 1 or 2
ECO 500is 500 litre stainless steel 2
Limitations on Use
  • The cylinder is usually housed inside or, if installed outside, under cover as the electronics must not get wet
  • The cylinder is not suitable for wall-mounting
  • The thermodynamic panel should be mounted facing north, west or east

The Energie Eco system must be installed by a qualified plumber and a qualified refrigerant engineer, who must commission the system. Relevant installation documents can be supplied by The Alternative Energy Company on request. The Alternative Energy Compnay handle the refrigeration side of the install and include it in their pricing. This is because correct installation is important for effective operation. Once installed correctly it is a maintenance free system.

Statement of Building Code Compliance

Energie Eco systems, if designed, used, installed and maintained in accordance with the statements and conditions of the technical literature, will meet or contribute to meeting the following provisions of the NZBC:

  • Clause G12: Water supplies

The products meet the requirements set out in the following documents, or relevant parts of cited standards within the documents (available on request):

  • Energie's Supplier Declaration of Conformity, dated 24 January 2014
  • Approved and certified to AS/NZS 2712:2007
In-Service History
  • Manufactured by European brand leader with over 30 year's experience
Other Performance Attributes
  • The average power consumption is 595W for 2 panel system and 390watts for single panel system
  • Water in the cylinder is heated to 55°C and to 65°C once a week to comply with anti-legionella requirements

 The Energie Eco system is manufactured to the highest standards and certified under the following management systems:

  • Oceanamark schedule, certificate # OMK22618. Issued 17 March 2017
  • WaterMark certificate, licence # WM-022618. Issued 17 March 2017
  • European Keymark certificate, registration # 011-7S888 F, issued 9 September 2009

 Warranty and Maintenance

  • 5 year warranty on cylinder
  • 10 year warranty on solar panel
  • Maintenance is almost non-existent
  • Expected minimum 25-year life
Supplier Declaration of Conformity
WaterMark Certificate
WaterMark Licence
Brochure / Technical Guide
Additional Information
FAQs: Energie
Installation Details
Eco 200 & 250 Location Drawings
Eco 300 & 500 Location Drawings

The Alternative Energy Company is the New Zealand supplier of solar thermodynamic hot water systems made by Energie (Portugal), and Eurothane GP PIR insulation panels made by Recticel (UK).

Product Enquiries

News from The Alternative Energy Company

Eurothane PIR Boards Easy to Retro-Fit
Landmark Papakāinga Development Uses Solar Thermodynamic Hot Water Systems
Innovative Low Emissions Water Heating Solution
Get a free weekly digest of essential news

New and updated architectural products, design solutions, inspiration, technical advice and more when you sign up for EBOSS.