AcroISO offer a complete range of heat pump cylinders, heat pump buffer vessels and heat pump accumulators. All of which can be used for both vented and unvented applications.

Heat pump tanks are manufactured from mild steel or enamel lined steel, all designed to the latest European Standards and made to conform to the Pressure Equipment Directive.

Products are CE marked where appropriate.


The AcroISO heat pump cylinder, buffer vessel and accumulator range includes:

• Flanged Hot Water Cylinders: for domestic hot water.
• Combined Stratifying Accumulators: for domestic hot water & heating systems.
• Combined Tank-In-Tank Accumulators: for domestic hot water & heating systems.
• Stratifying Accumulators: for heating systems.
• Flanged Stratifying Accumulators: for heating systems.
• Buffer Vessels & Solar Accumulators: for heating systems.

Stratifying Accumulators: for heating system water.