Model:
Unvented Cylinder - Indirect
The Aquastor Sigma range of unvented indirect hot water cylinders are ideal for high demand applications and offer an all stainless steel construction to the highest standards, with a maximum operating pressure of 4.5 bar.
The Sigma range has been designed with higher demand flow rates in mind and features 1 “ BSP connections.
Available in a range of cylinder sizes with an ErP B classification.
• 1 " hot and cold water connections
• ½" temperature and pressure relief valve
• 4.5 bar maximum operating pressure
• 3 kW immersion heater
• 22 mm high performance heating coil