Energy saving additive for commercial or domestic heating systems.
Save up to 15% on heating bills.


EndoTherm is a unique, award winning energy saving additive that is suitable for any wet heating system. EndoTherm has been independently proven to save up to 15% on heating bills.

Key Benefits.

Independently verified product claims

Proven 5 year longevity

Easily scalable

Wide range of case study data


Compatible with inhibitors

100% organic

Applicable to existing or new systems

Fast ROI

No maintenance or calibration

Quick install, no downtime

Carbon Reduction

How EndoTherm works.

  • Due to the surface tension of fluid and imperfections in materials inside heating systems optimal thermal contact is not made.
  • When dosed EndoTherm™ stably changes the surface tension of the fluid by over 60% whilst remaining non-corrosive.
  • This increases the thermal contact which improves heat transfer rate and heating efficiency.
  • Resulting in rooms reaching determined temperature quicker and staying warmer for longer.
  • Return water temperature is lower which allows boilers to condensate more efficiently and recover more latent heat.
  • Less fuel is consumed to maintain thermostatically set temperature.

Click here for further information on how EndoTherm works


Award winning.

EndoTherm has been repeatedly recognised for the difference it is making and the savings that are being made by its users. Prestigious industry awards have seen fit to commend EndoTherm for its performance.

CIBSE Building Performance Awards 2016 EndoTherm Energy Saving Product of the Year
H&V News Awards 2015 - EndoTherm Domestic H&V Product of the Year
Ecobuild/M&S 2015 Big Innovation Pitch - Winner EndoTherm

Wide range of applications.

EndoTherm works in any wet heating systems, some examples being:





Leisure Facilities


Public Buildings


Visit the EndoTherm website for more information.

Endo Enterprises (UK) Ltd
Unit 231,
Europa Boulevard,

T: +44 (0)1925 747 101

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Copyright © 2016 Endo Enterprises (UK) Ltd. All rights reserved. The Endo Enterprises (UK) Ltd Logo, EndoTherm Logo, EndoSan logo and all products and images denoted with ® or ™ are registered trademarks or trademarks of Endo Enterprises (UK) Ltd