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Wartsila’s User Group Forums General Use of glycol in cooling water Reply To: Use of glycol in cooling water


Our plant is in Northern BC, Canada.  During the winter our temps get down to -45 C.  We use a 60/40 mix in the LT system and a 80/20 mix in the HT system.  Our engines were de-rated because of the use of glycol.  After 6 years of operation we have never had a freeze up.  The cooling system has an electric pre-heater and circulation pumps for when the engines are shutdown