Institute of Art, Design & Technology
Dun Laoghaire

In recent times IADT Dun Laoghaire has undergone a modern make over. The ground floor of the Atrium building now serves as a central hub for all IADT activities, attracting a high volume of students and visitors.  The ground floor now features informal collaborative workspaces, relaxed eating areas, and technical hot desks as well as a contemporary, well-equipped, and spacious canteen area.

As part of the modernisation, we supplied two Enerblue Iridium Heat Pumps. These will provide domestic hot water to the new purpose-built restaurant, as well as meet all domestic hot water requirements for 2,500 students and staff daily.

Enerblue’s Iridium for High Temperature Domestic Hot Water

Due to the requirement for high volumes of domestic hot water, the Iridium was specified by Homan O’Brien and installed by Gaffney Mechanical.

The units work with natural refrigerant gas R744 (CO2) and can heat water up to 90° with an external temperature as low as -20°.

The Enerblue Iridium Heat Pump uses CO2 offering several benefits:

  1. Energy Efficiency: CO2-based heat pumps boast high energy efficiency levels even when producing water at high temperatures, helping to reduce energy consumption and lower utility costs.

  2. Environmental Friendliness: Unlike traditional heating systems that rely on fossil fuels, CO2-based heat pumps have a lower carbon footprint, contributing to a cleaner environment and reduced greenhouse gas emissions with a GWP (Global Warming Potential) of only 1.

  3. Renewable Resource: CO2 is a naturally occurring gas and can be sourced sustainably, making it a renewable resource for heating applications

4. Versatility: CO2-based heat pumps thrive on high temperature differences, enabling bringing water from mains temperature of 10 degrees right up to 90 degrees. Making them ideal for domestic hot water needs and the commercial food processing industry.

5. Longevity: These heat pumps are designed for durability, offering a long operational lifespan with minimal maintenance requirements.

Overall, using an Enerblue Iridium Heat Pump that utilizes CO2 can lead to cost savings, reduced environmental impact, and reliable heating performance.


At Keane Environmental Ltd., we understand that every job, large or small, has its own challenges.  We’d be delighted to work with you to find the correct solution for your building.  If you’d like to hear more about this or any of our other projects, contact us today.

Consulting Engineers: Homan O’Brien

Mechanical Contractor: Gaffney Mechanical

Clients: IADT

Suppliers: Keane Environmental Ltd.

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