Thermal Performance for Energy Optimisation

ETT, French manufacturer of HVAC and dehumidification systems. Committed to people and the environment for 45 years.

Find out more about ETT
23 July 2025 The First R290 Rooftop Unit is French!
23 January 2025 ETT, French manufacturer of HVAC units for air conditioning
08 April 2025 Antoine Millot featured on the ETI Radio podcast

A comprehensive range of services.
Dedicated expertise.

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Our Products

    • Air handling
    • Water system
    • Dehumidifier
    • Hybrid Adiabatic Product Range
    • Air handling
    • Water system
    • Dehumidifier
    • Hybrid Adiabatic Product Range
    • Air handling
    • Water system
    • Dehumidifier
    • Hybrid Adiabatic Product Range
    • Air handling
    • Water system
    • Dehumidifier
    • Hybrid Adiabatic Product Range
RTS
Industry Aeronautics
ULTI+ R290 / New!
Industry Stores Aeronautics Warehouses
ULTI+ R290 ADIA / New!
Industry Tertiary and Leisure Stores
ULTI+ R290 ADIA EX2 / New!
Stores Tertiary and Leisure Industry
ULTI+ R290 EX / New!
Stores Industry Tertiary and Leisure
ULTI+ R32
Stores Sports Industry Tertiary and Leisure Aeronautics
All products
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A Presence in France and Abroad

ETT operates across more than 26 countries.

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Our Projects

The food industry market The laundry industry The cosmetics industry Data Centers Leisure & Cinemas Industry - Joinery The food industry market
RUNGIS (94)

HALLE AUX FLEURS (94)

Modernisation of the original 22,000 m² building, which was an empty hall where wholesalers set up on trestles with their goods.

Meaux (77)

ELIS (77)

In a context of decarbonization, the world leader in industrial laundry aimed to explore a new concept for a linen dryer.

Vichy (03)

L’OREAL (03)

As part of their equipment renovation, the aim was to deal with a sensitive room for weighing raw materials.
The aim was to maintain the temperature at between 17 and 19°C all year round with very high efficiency particle filtration.

Gouesnou (29)

ASTEN (29)

For this data centre with a ‘hot aisle’ and ‘cold aisle’ design, the idea was to provide a packaged and self-contained solution with the machines integrated indoors on the data centre’s upper slab.

LYON BELLECOUR

PATHE (69)

To reduce operating costs and stop using Lyon’s groundwater, our client asked us to find a 4-damper rooftop solution.

Landivisiau (29)

MENUISERIE DE L’ATLANTIQUE (29)

Les Menuiseries de l’Atlantique (M.D.A) designs and manufactures PVC windows, French windows and entrance doors for new build and renovation projects.
Working with PVC requires fewer constraints than wood, and temperature management is sufficient for the manufacturing process.

Haut-Rhin (68)

JOHN COCKERILL (68)

This Gigafactory is Europe’s first manufacturing plant entirely dedicated to low-carbon hydrogen, with an annual electrolyser production capacity of up to 1 GW.
The aim was to deliver a fresh air flow of 100,000 m3/h at a minimum temperature of 18°C all year round.

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ETT: Your Project Partner

At ETT, we don't just build machines – we build partnerships. We dive deep into your world, understanding your unique challenges and aspirations. The result? A bespoke machine that's fine-tuned to your exact needs.

Quality & Reliability

ETT provides climate and energy solutions tailored to your requirements, supporting you throughout the lifecycle of your heating, ventilation, and air conditioning installations.

Customization & Co-design

ETT designs bespoke products perfectly adapted to your applications and constraints. Together, we build the product you need.

Strong values

ETT advises and supports you in meeting your energy performance needs. Our highly qualified team offers you innovative, customised solutions.