Volano UP GBF - 4 Connection Mild-Steel Buffer Tank (Indoor)

Volano UP GBF — Wall-Hung Mild-Steel Buffer Tank (4 Connections)

Volano UP GBF is a compact, wall-hung buffer tank designed to stabilize flow and protect air-to-water heat pumps and hydronic systems from short cycling. Mild-steel construction with a durable soft-PVC outer jacket makes it a tough, low-profile choice for indoor mechanical rooms where floor space is tight.

Key features

• Wall-hung, space-saving design – Slim vertical cylinder that keeps the floor clear and fits easily into small mechanical rooms and closets.

• 4-connection configuration – Two connections for the heat source and two for the system circuit, giving installers flexibility for piping, purging, and sensor placement.

• Sized for residential and light commercial systems – Models from 8–100 liters (approx. 2–26 gallons) cover everything from small residential heat pumps to larger multi-zone systems.

• Stable system operation – Adds thermal mass to reduce heat-pump cycling, improve defrost performance, and smooth out flow in zoned or variable-speed systems.

• Mild-steel vessel with PVC jacket – Robust steel tank with a clean, impact-resistant soft-PVC outer lining for a finished look and easy wipe-down.

• Indoor installation – Designed for indoor hydronic applications such as buffer/storage on closed heating and cooling loops (not for potable domestic hot water).

Typical applications

• Air-to-water heat pump systems needing added buffer volume

• Hydronic heating and cooling loops with zoning or variable-speed pumps

• Retrofit projects where floor-standing tanks won’t fit

(See Technical Documents below for full Volano UP GBF technical data, dimensions, and connection sizes in U.S. units.)