Reduce heating energy consumption and carbon emissions NOW!

EndoTherm is an easy to install, award winning, energy saving additive suitable for any wet heating system that is proven to save up to 15%

Large library of customer verified pilot studies

Supported by Energy Efficiency Rebate & Funding Schemes

Featured in International Journal of Energy Management

Focused on by BC Housing Energy Efficiency Research

EndoTherm – Energy Saving & Carbon Emission Reducing Hydronic Heating System Additive

EndoTherm is a unique, multi-award winning energy saving hydronic additive independently proven to save up to 15% on space heating energy consumption.

Systems Heat Up Quicker…

Improved Heat Transfer…

Using Less Energy!

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Independently Proven

EndoTherm has been rigourously tested with savings confirmed by multiple third party Research & Development laboratories and facilities.

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Easy to Install

EndoTherm requires no system downtime and can be installed, like an inhibitor, in just 10-15 minutes.

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Non - Corrosive

EndoTherm is non-corrosive to heating system components in use and is non-hazardous with no discharge requirements.
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Award Winning & Recognised

EndoTherm is a multi-award winning technology with confirmed compatibility with leading boiler and inhibitor brands.
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Carbon Emission Reduction

As EndoTherm reduces heating energy consumption, greenhouse gas emissions are also reduced which is vital to achieve net zero targets.

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100% Organic

EndoTherm is made from 100% organic materials and is responsible for 0.58Kg embodied carbon which is offset in under a day of use.

Laboratory testing, and studies carried out in samples of domestic and non-domestic properties, shows that EndoTherm has been effective in reducing energy and fuel consumption with condensing boilers *

*These results are specific to the cases studied. Similar performance improvements may not be realised in other heating systems. Potential performance improvements depend on the current performance, condition and settings of the heating system. Based on performance data and instances reviewed comprising results from Enertek test report E3363 (dated 14th January2014); RCT Homes field trial report from Artega and non-domestic case studies.
EndoTherm-Verified by Energy Savings Trust

EndoTherm has confirmed compatibility with these major boiler manufacturers:

*EndoTherm does not invalidate the warranties of these boiler manufacturers

In partnership with:

CIBSE - Energy Saving Product of the Year 2016
CIBSE - Energy Saving Product of the Year 2016
H&V News Awards 2015 - Domestic H&V Product of the year
Ecobuild M&S Big Innovation Pitch Winner
EndoTherm central heating additive also available at Nigels Eco Store
EndoTherm central heating additive also available at Nigels Eco Store

EndoTherm is featured in the October 2021 issue of the International Journal of Energy Management:

EndoTherm is a recognised technology supported by HVAC rebates in a number of territories:

HVAC Control

EndoTherm Supported by HVAC Control Rebates

EndoTherm is now supported by HVAC control rebate schemes.

 

Find out more about how you can take advantage...

 

EndoTherm awarded prestigious Eurêka prize by Écotech Québec!

EndoTherm awarded prestigious Eurêka prize by Écotech Québec!

Founded in 2009, Écotech Québec is the first organization of its kind in Canada with a mission to accelerate the development, commercialization and use of Quebec’s innovative clean technologies. Since its creation, Écotech Québec has participated in the implementation...

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EndoTherm Selected by US GSA Green Proving Ground Program

EndoTherm Selected by US GSA Green Proving Ground Program

The U.S. General Services Administration’s (GSA) Green Proving Ground (GPG) program, in collaboration with the U.S. Department of Energy (DOE), has selected six innovative building technologies for evaluation in GSA's inventory. The GPG program leverages GSA’s...

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A Message From Our Managing Director:

It is very clear that tangible action has to be taken immediately to tackle climate emergency, achieve net zero carbon goals, and combat rapidly rising energy costs.

EndoTherm presents an extremely attractive, cost effective opportunity, to quickly reduce space heating energy usage by double digit figures. Our team is on hand and ready to help you.

How EndoTherm Works

EndoTherm is a unique energy saving central heating additive, independently proven to save up to 15% on heating bills! But how does it work?

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EndoTherm Roll-Out Part of Minto Apartment REIT ESG Report Highlights

Minto Apartment Real Estate Investment Trust (REIT) released their second annual Environmental, Social and Governance (ESG) report highlights in October 2022 highlighting their various commitments...

EndoTherm awarded prestigious Eurêka prize by Écotech Québec!

Founded in 2009, Écotech Québec is the first organization of its kind in Canada with a mission to accelerate the development, commercialization and use of Quebec’s innovative clean technologies....

EndoTherm Selected by US GSA Green Proving Ground Program

The U.S. General Services Administration’s (GSA) Green Proving Ground (GPG) program, in collaboration with the U.S. Department of Energy (DOE), has selected six innovative building technologies for...

EndoTherm takes third place at National Energy Efficiency Awards

The leading lights of the energy efficiency industry came together on Friday 18th February 2022 at the Hilton Birmingham Metropole to celebrate the accomplishments achieved by the sector over the...

International Journal of Energy Management features EndoTherm

EndoTherm is featured in the latest issue of the International Journal of Energy Management (Volume 3, Issue 5, 2021) which is published by the Association of Energy Engineers (AEE). Founded in 1977...