Volano UP GBP 6-Connection models are outdoor-rated buffer tanks designed for air-to-water heat pumps and hydronic systems where the tank lives outside with the equipment. With six connections and a tough technopolymer jacket, they combine flexible piping options with weather-resistant construction.
Key features
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Outdoor-ready design
Mild-steel vessel protected by a durable, UV-resistant technopolymer shell for exposed installations next to outdoor heat pumps or on equipment pads. -
Six connections for complex systems
Two connections for the heat source plus four additional tappings for system circuits, mixing sets, or sensor wells—ideal for multi-zone, low-temp, or future-ready system designs. -
Compact, wall-hung form
Vertical, wall-mountable tank that keeps patios and service areas clear while staying easy to access for maintenance. -
Sized for modern heat pump loads
Models from 25–100 liters (~7–26 gallons) provide the buffer volume needed to reduce short cycling, support defrost performance, and stabilize flow in real-world residential and light-commercial systems. -
Improved stability and comfort
Adds thermal mass to smooth out temperature swings, protect compressors and pumps, and support quiet, steady operation in zoned hydronic loops. -
Hydronic closed-loop use only
Intended for non-potable heating and cooling circuits; not for domestic hot water storage.
Typical applications
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Outdoor air-to-water heat pump systems with multiple zones or distribution circuits
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Hydronic heating and cooling loops that need extra ports for sensors, mixing valves, or bypass lines
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Projects where buffer capacity must be outdoors but flexibility and long-term durability still matter
(See Technical Documents below for full Volano UP GBP 6-Connection technical data, dimensions, and connection sizes in U.S. units.)