A regular replacement of the solar fluid (approx. Every 4 to 7 years) is important because the heat transfer can be deteriorated and finally a failure of the system. This solar fluid made of propylene glycol has an excellent frost protection value of -35 ° C. It is already ready for use and is characterized by its efficient heat conduction. It also contains a number of inhibitors that ensure excellent corrosion protection properties. These characteristics enable you to maintain a constant thermal performance and to significantly extend the period of the system -free operation of the system. It can be mixed with Allen propylene glycol fluids regardless of the color. With the help of a solar waste pump, the solar fluid can be easily changed from home. With a little practice, this is possible within 30 minutes.
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