Energy & Carbon Saving Additive for Chilled Water Systems
Reduce carbon emissions and save on cooling energy consumption for both process and comfort water cooled chiller systems.
EndoCool is an energy saving additive for any chilled water system.
EndoCool changes the properties of the secondary circuit fluid and increases the efficiency of hydronic chiller systems.
According to estimates, 40% of the world’s electricity is used for air conditioning and building cooling.
Many commercial and industrial cooling systems rely on chilled water to distribute cool air around a building.
These electrically driven systems can be a large expenditure for building owners and operators.
EndoCool is a product designed for chilled water systems to reduce energy consumption and carbon footprint.


Reduce energy consumption and cooling costs in any chilled water HVAC system by up to 15%.

Substantial carbon emission reduction achieved by a low embodied carbon footprint product.

Based on existing independently verified, third party laboratory tested, award winning technology.

Fast and easy installation. No disturbance or system downtime required. Can be installed and start saving without interruption.
Find out more…
EndoCool was piloted by a 54-storey mixed-use building in Dubai’s central business district.
The building is connected to a district energy system and requires constant air chilling for comfort cooling.
EndoCool saved 13.76% on cooling energy consumption over 10 months, with full ROI delivered in under 12 months.
EndoCool can be used in conjunction with glycols and other anti-freeze technology and can help improve system efficiencies compared to water-only systems.
HVAC hydronic fluid viscosity is often increased when chilled water systems are dosed with anti-freeze chemicals. In spite of providing freeze protection, this can significantly reduce the fluid flow rates.
The result can often be excessive pumping and running times, which in turn increases energy consumption. By changing the properties of the system fluid, EndoCool can improve the operation and efficiency of the chiller system.
EndoCool is a cost effective, easy to install, energy saving measure that provides the following optimisations to any water cooled chiller system:

Latest News.
Endo Joins USGBC California’s Net Zero Accelerator, Cohort 8
Endo Enterprises has been selected as a cohort member of the Net Zero Accelerator (NZA) Cohort 8 (2026) — the U.S. Green Building Council California program that places pilot-ready building technologies with real-world hosts across the state.
Endo Enterprises Wins International Recognition at Asia’s Leading Climate Tech Competition
Endo Enterprises, the UK company behind EndoCool energy-saving additive, has been recognised as one of the world’s most promising climate technology innovators.The company was selected as one of just eight global finalists at The Liveability Challenge (TLC) 2026, Asia’s premier platform for breakthrough sustainability solutions.
EndoCool Shortlisted for The Liveability Challenge 2026 Among World’s Leading Sustainability Innovators
Endo Enterprises has been shortlisted as one of just eight global finalists in The Liveability Challenge 2026 for its EndoCool energy-saving additive for chilled water systems — a breakthrough solution helping commercial buildings improve cooling efficiency and reduce carbon emissions.
Independently Tested.
Both EndoTherm and EndoCool have been tested and verified by multiple third-party authorities.
EndoCool is suitable for use in any chilled water system.
Installation is quick and easy with no downtime or interruption.
Interested in saving on heating costs?
EndoTherm is an award winning, energy saving additive for hydronic heating systems.
Get in touch with the EndoCool team
UK & Europe
Email: enquiries@endocool.com
Telephone: +44 (0)1925 747 101
USA, Canada & Rest of the World
Email: enquiries@endocool.com
Telephone: 778-895-1990
EndoCool is part of the EndoTherm product family and a registered product of Endo Enterprises (UK) Ltd.
EndoTherm is an energy saving additive for heating systems
Endo Enterprises (UK) are experts in water treatment solutions.
For more info visit www.endoenterprises.com


