ETT and the Coronavirus crisis COVID-19

, ETT is adapting to contribute to this necessary collective effort, while offering you the best possible continuity of its services.

Thermal performance for energy optimisation

Maximising rooftop performance to reduce your energy consumption

Dehumidification system dedicated to aquatic sports and leisure centres

ETT air treatment solutions combine thermodynamics and ventilation systems.

Managing air treatment in extreme environments

An ATEX air conditioning system

ETT, a French manufacturer and energy transfer specialist


Key player in the design and manufacture of bespoke air handling systems with energy recovery and high performance heat pumps, ETT is based at the western tip of France.

Our 18,000 m2 factory (with 16,000 m2 dedicated to manufacturing), is certified ISO 9001 and ISO 14001. ETT’s tailor-made solutions address the challenges of today's demanding economic situation that privileges comprehensive solutions including all costs: purchase, installation, commissioning, energy consumption.


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ARAGO pool complex

La Roche sur Yon, France

ETT new generation DESHU bypass unit ensures both building durability and the comfort of swimmers in sports and leisure pools.

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ETT is located in more than 26 countries

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Our news

As we approach the end of this year, we wanted to send you our warmest wishes for a joyous festive season and a smooth transition into the New Year. ✨ Over the past year, our commitment to the transition to sustainable energy sources has been strengthened thanks to your trust. Together, we have helped to […]

On Tuesday 5 December, ETT organised a tour of its modernised sheet metal work centre for all its employees. More than 150 employees came to see the completion of this major modernisation project, which started in 2019. This major investment was one of the ten winning investment projects in Brittany from the French “Fonds d’accélération […]

ETT TAKES PART IN THE 12th INDUSTRY WEEK. This national event is run by the General Management for Enterprise of the French Ministry of the Economy, Finance and Industrial and Digital Sovereignty, with the support of France Industrie and its federations.The aim is to highlight the wealth and diversity of the industrial sector and its […]