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BOB1901 BOB1901 is offline
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This is a radiant floor heating system. The sys has an air eliminator,operating pressure is around 15-20 lbs,temp is about 130 degrees and closed sys.The sys uses a hot water tank to heat the water. I had tried anti freeze to act as a lubricant to stop the rusting of the expansion tank (mixed a few gallons in to the sys),no luck. It seemed to make the expansion tanks rust faster.First tank lasted about 18 months,second about 12 months ,third about 9 months. Any way of reducing the oxygen in the water.