How EndoTherm Works

EndoTherm is an energy saving additive which can be added to any wet based central heating system.

  • 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 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.

The Science

Consider the established methods of improving heating system efficiency. For example ‘Powerflushing’ improves thermal contact area by removing sludge and scale, ‘inhibitors’ prevent this scale from formulating thus maintaining an optimum contact area. EndoTherm too creates a larger thermal contact area on the inside of radiators/AHU chemically (not physically) by reducing the surface tension of the water in any heating system.

Changing the surface tension of heating system fluid essentially makes it “wetter”. EndoTherm breaks down the Hydrogen bonds within the fluid resulting in a 60% “wetter” fluid when compared with standard water. A wetter fluid can access and improve contact with the micro-cracks and unavoidable imperfections within a radiator, boiler tube or heat exchanger. Increased thermal contact improves the efficiency of heat transfer into a building.

As more heat is lost into the room, the water in the system has less energy and returns to the boiler cooler. This cooler return allows modern boilers to condensate more and recover more latent heat from the water reducing the workload of the boiler to heat back up again. This means that even the most modern and energy efficient systems with EndoTherm can use less fuel to maintain the desired or thermostatically set temperature when compared with water only systems.

EndoTherm heating cyclesMore details on the scientific effects revealed by our testing can be seen in the Independent Testing section, but simply under controlled conditions EndoTherm dosed systems have been proven to heat up quicker and stay warmer for longer thus requiring less heating cycles over a given time period putting less strain on the boiler and a reduction in energy consumption of up to 15% when compared with water only systems. The change in performance in a controlled lab based test can be seen below. 

As a company, Endo Enterprises (UK) are committed to continue the development of the product, our scientific understanding of the product and the development of new applications in different environments including heat pumps, cooling and other thermal applications.

EndoTherm is produced and manufactured in the UK and has been installed in thousands of commercial and domestic applications UK and Europe wide.

Independent Testing

EndoTherm has been extensively tested for performance, corrosion and longevity by a number of leading independent R&D facilities.

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What a difference 2 years makes. Recap on RBS Press Release on EndoTherm

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Building Energy Innovators Council Re-Publishes University of Fraser Valley Study

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On paper, EndoTherm appears to good to be true. An easy to install; fit and forget technology with independently proven savings up to 15% in comfort heating and chilled water...