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 ethylene glycol has an excellent frost protection value of -81 ° C. As a result, it can be mixed with water in a ratio of 1: 2 in order to achieve a frost protection value of -27 ° C (for most systems, a frost protection value of -25 ° C is sufficient). The higher the water content of the liquid, the more efficient it can forward heat. This increases the yield of your solar system. 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.
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