Adiabatic Coolers | Adiabatic Cooling

Adiabatic coolers are a modern alternative to traditional cooling towers, involving significantly lower maintenance and OPEX.

  • Modern, low risk alternative to hybrid and traditional cooling towers
  • UV sterilisations as standard
  • Developed in conjunction with British Health & Safety Executive
Transtherm’s adiabatic system provides “very effective management of Legionella risk”
The British Health and Safety Executive

Top Features

No ongoing chemical treatment or registration with local authorities required

Low Legionella Risk

No ongoing chemical treatment or registration with local authorities required


Extremely Energy Efficient

Variable speed EC and AC fan technology – typically only 25% of traditional fan energy usage


Minimal water consumption

Less than 4% of Hybrid Cooling Tower and less than 1% of traditional Cooling Tower water usage



Minimal Installation, Commissioning and Maintenance requirement



Compatible for communication around the world with standard WiFi or optional 3G controls



Including parts and labour in UK mainland, parts only elsewhere – Extendable to 5 years

Who are using Transtherm's Adiabatic Coolers | Adiabatic Cooling?


Chelsea and Westminster Hospital

Transtherm were approached to provide 3 x large Adiabatic Coolers (1 x 768kW, 1 x 960kW, 1 x 1,152kW) to dissipate the heat from an absorption chiller circuit that is fired from the waste heat of a CHP (Combined Heat and Power) system.


Oxford Brookes University

470kW and 359kW Transtherm Adiabatic Coolers were supplied to dissipate condenser water heat from Absorption Chillers. Due to the hardness of the local water supply, the coolers were all supplied with Transtherm’s air inlet filters.


Toyota - Deeside, North Wales

2 x 2MW Transtherm Adiabatic V-Coolers were used to replace a large cooling towers. By using Transtherm adiabatic Coolers, the end user was able to eliminate ongoing chemical treatment and save huge amounts of water and energy.

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What Transtherm's customers say...


Transtherm’s adiabatic technology is an efficient, reliable and high-quality solution for directly cooling data centres in which the server temperature parameters allow for the eradication of compressor or refrigerant based technologies.

Their designs are based on real time weather data for the installation site and their knowledgeable team of mechanical engineers can quantify any specification decision with independent research and testing results for complete peace of mind.

Mark Mickleburgh
Senior Project Manager, Briggs and Forrester

Completing a build of such scale and complexity within just 16 weeks requires suppliers to adjust the design and build of their products in accordance to the build schedule and deliver them just in time for installation to prevent costly delays to NGD and our local contracting firms. The solution provided by Stulz and Transtherm is a great example of how data centres can work with trusted, reliable and dedicated supply chain partners..

Senior Project Manager, Briggs and Forrester

We were ultimately thrilled with the decision to upgrade to a new ambient-only cooling system, rather than simply switch the old chillers for a like-for-like replacement; something which we didn’t think was achievable within our original budget.

Commissioned during one of the hottest UK summers on record, the new system has already demonstrated its performance credentials and we are delighted with the results.

Paul Nile
Maintenance Manager, University of Plymouth

With a dramatic increase in digestion capacity and therefore gas production, the CHP system was working harder than ever before. With the CHP plant working harder, the original coolers were running at higher fan speeds for prolonged periods in order to manage the increased heat dissipation requirement.

It was clear the current cooler specification simply wasn’t able to maintain the engine and intercooler temperatures required for optimum engine performance. This was the point we turned to Transtherm.

EM&I Manager North, Wessex Water
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Transtherm - A Customer-centric business since 1989


    Transtherm’s adiabatic coolers are a low maintenance, modern alternative to traditional cooling towers and offer lower Legionella risk and OPEX


    Developed with energy efficiency and reliability in mind, our wide range of air blast coolers use the latest heat exchange coil, fan and control technologies


    Our cooling solutions for data centre have been recognised by the DCS Awards panel and we are proud winners of the 'Data Centre Cooling Innovation of the Year' Award.


    High water temperatures, low noise requirements and footprint considerations – Transtherm’s air blast coolers are designed to take all of these common factors into account


    Combining both technologies from Transtherm, the Packaged Cooler & Pump Set Solution requires minimal system design, installation and commissioning time


    Available for commercial and industrial applications, Transtherm’s standardised pump packages are a straightforward and cost effective ‘fit and forget’ solution


    Available for commercial and industrial applications, Transtherm’s standardised pump packages are a straightforward and cost effective ‘fit and forget’ solution


    Suitable for all standard refrigerant and steam-based condensing applications, Transtherm’s unit designs can be modified to ensure Pressure Equipment Directive (PED) compliance


    Transtherm’s market-leading control systems complement the full range of dry coolers, adiabatic coolers, free coolers, air cooled condensers and pump sets

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    Have a look around one of our latest Half-V Adiabatic Coolers with our Sales Director - Tim Bound.