Non Toxic Glycol Antifreeze.
For ground, air & water heat pump systems


Thermox DTX has been especially formulated for use in ground, air and water heat pump systems, to exploit the advantages Ethylene Glycol has over Propylene Glycol – whilst delivering a non toxic solution.


Although based on Ethylene Glycol, Thermox DTX has been tested and classified as Non Toxic by an EPA certified laboratory. Previously Propylene Glycol was the only non toxic glycol available, that is no longer the case. Hydratech in alliance with Evans Cooling Systems, Inc. have developed and patented the DeTox™ additive. DeTox™ prevents Ethylene Glycol from being metabolised (during digestion) into toxic by-products, which cause kidney failure, blindness and death. Tests carried out on Thermox DTX confirmed the toxicity was “so low that it was impossible to determine an LD50 value”.

The DeTox™ additive has very little effect on heat transfer or antifreeze performance. In fact similar volumes of Thermox DTX or Ethylene Glycol are required to achieve a specific freeze protection.


We are one of the few companies which offer service, maintenance and 24 hour technical support on all heat pumps in the UK.