Tempest indirect twin coil hot water storage cylinders are designed for use with heating systems where solar thermal is used to compliment an air source heat pump. The Duplex stainless-steel cylinders feature 3.3m purpose-designed renewable coils which allow maximum heat transfer of renewable energy into the stored water. Cylinders are supplied with a factory-fitted 3 kW immersion heater to provide backup heat.

• Duplex stainless-steel provides superior corrosion resistance
• 316L grade stainless-steel 22mm compression fittings and coils
• Purpose-designed renewable coils with a 3.3m surface area
• Supplies mains pressure hot water and high flow rates
• Fast reheat
• Factory-fitted temperature and pressure relief value set at 7 bar / 90C
• Remote expansion vessel with factory-fitted wall mounting bracket
• Full unvented kit supplied
• Highly efficient
• Fully insulated to minimize any heat loss
• Factory-fitted 3kW immersion heater*
• Available in 170-300 liter capacities
• Lifetime manufacturing warranty on the inner container (2 years on components)
• Bespoke options available
• Delivery – 3-4 working days