Better insulated than steel buffer tanks, roughly half the weight, and it won’t rust! Arctic Hybrid plastic tanks are the only pressurized composite buffer tank on the market! Lightweight, won’t rust and works equally well for hot or chilled potable and non-potable water! 41% less heat loss than the leading steel tank and at a price point that can’t be beat!



Buffer tank with built in back up option ranging from 4.5K – 29 Kw. The AltSource also has full hydronic control functionality including digital controller and pump and zone valve control. There is also an outdoor temperature sensor for heating curve functionality. Available in two sizes 50 gallon or 70 gallon. Optional built in copper heat exchanger will deliver heated domestic hot water at an efficiency of 98%.
BuffMAX Hydronic Buffer Tank


This is a buffer only tank with large ports for great hydraulic separation. The Hydronic Buffer tanks include 3 temperature sensor ports for accurate reading of the internal water temperature. As with the AltSource, the BuffMAX hydronic buffer tank also includes a pressure release valve and an air bleed valve. These hydronic buffer tanks are used with our Arctic Heat Pumps for efficient energy storage and to provide hydraulic separation where two different pump speeds are needed.

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