Joule 42x18 Indirect, Insulated, G2 Cylinder

The Joule 42x18 Indirect Insulated G2 Cylinder is a premium copper hot water storage solution designed to deliver reliable performance, energy efficiency, and long-lasting durability. Constructed from solid copper and factory insulated with 25mm spray foam, this G2-grade cylinder provides excellent heat retention and minimal energy loss. With two indirect heat exchangers, it offers flexibility for systems using dual heat sources, such as a boiler and solar setup. Ideal for domestic hot water applications, it delivers consistent flow and temperature while maintaining a compact and durable design built to withstand everyday use.

• Indirect insulated copper cylinder with twin heat exchangers
• Capacity: 95 litres
• Constructed from solid copper for superior heat transfer and strength
• Factory-fitted 25mm spray foam insulation for reduced heat loss (62W)
• Maximum working pressure: 0.98 bar
• Maximum working head: 10 metres
• Coil flow rate: 15 LPM @ 80°C (each coil)
• ERP energy rating: Band C
• Durable and efficient design suitable for domestic hot water systems
• Dimensions: Height 750mm, Diameter 500mm, C: 100mm, E: 525mm, F: 28mm, G: 710mm
• Manufactured to G2 standard for reliability and long-term performance