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• Since the necessity of heating the water idle in the open expansion tank is eliminated, fuel saving is achieved.
• Since the closed expansion tank will be installed in a sheltered area such as a boiler room, the heat loss is reduced and fuel savings are achieved.
• Since the system is closed to the atmosphere, oxygen does not enter from outside and equipment, radiators, pumps, boilers, etc. are less affected by corrosion.
• It saves space as it takes up less space than an open expansion tank.