ARCTIC HEAT PUMPS | hydronic components | thermal storage

Arctic Hybrid Heat/Chiller Tank - 22 Gallons


The Arctic Hybrid Buffer Tank is the only pressurized composite buffer tank on the market. Better insulated than steel buffer tanks, roughly half the weight, and it will not rust!

Arctic Buffer Tank Features

Will never corrode & half the weight of steel buffer tanks

These advantages can reduce labor costs on installations ,while being a cost-effective way to improve system efficiency by reducing heat pump short cycling during low load periods – and hydraulically separating the source from the distribution system.

Rated to 180° F at 75 PSI and 140° F at 100 PSI

Our NSF-approved polypropylene core is wrapped in a blend of continuous strand fiberglass, and a high temperature resin. This makes the Arctic Buffer tank perfect for hydronic heating and cooling, low mass boiler systems, and chilled water applications.

Arctic tanks are insulated with a closed cell foam

This insulation provides an R-value that is unmatched by the competition, and has a heat loss of less than 1 degree/hour.

Multiple sizes available

Tanks are available in sizes of 22, 40, 55, 80, 120 gallons – and all come with 4 stainless steel side ports, a thermal well (except 22 gallon), vent, vacuum breaker and drain.

Highest efficiency

No other buffer tank matches the Arctic Hybrid Tank in terms of heat loss efficiency. With a heat loss of 41% less than the next comparable buffer tank, the Artic Hybrid Tank outperforms, saves money, and will never rust out!

Operation of the
Arctic Buffer Tank

Stable Temperature with and Inverter Pool Heat Pump

Operation of the
Arctic Buffer Tank

The primary application of a buffer tank is to reduce heat pump, chiller, or boiler short cycling.

The buffer tank is an energy battery that stores heated or chilled water for use when needed. By using a 4-port design, the supply and demand are hydraulically separated – so that the heat pump’s high flow circulating pump is separated from the hydraulic loads circulating pump.

Hydronic buffer tanks are often used in systems operating below the design load condition (which is most of the time), or in systems having several low BTU cooling or heating loads calling at different times.

What It Does

The buffer tanks are built with 4 stainless steel connections. Two connections can be piped to the heat pump or boiler, and two connections can be piped to the distribution system. When piped correctly the tank serves as both a thermal buffer and a hydraulic separator.

Arctic Buffer Tank
Model Volume (Gal) Volume (L) Ht. (in.) Ht. (cm.) Dia. (in.) Dia. (cm.) Weight (lbs.) Weight (kg) System Connections
BUF 22 22 83 35" 89 21 53 42 19 1 1/4"
BUF 40 40 151 56" 142 21 53 55 25 1 1/4"
BUF 55 55 208 73" 185 21 53 70 32 1 1/4"
BUF 80 80 302 54" 137 29 74 120 54 2"
BUF 120 119 450 74" 188 29 74 145 66 2"

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