IE Indirect Slimline

Indirect Slimline unvented stainless-steel hot water storage cylinder with internal expansion

The JAB DUC IE Indirect Slim Internal Expansion Unvented Cylinder is a compact, high-performance hot water storage system designed for modern domestic applications where space, efficiency, and reliability are key.

Constructed from high-grade duplex stainless steel, this cylinder offers excellent corrosion resistance and long-term durability. It's engineered for mains-pressure hot water delivery. Providing powerful flow rates for showers, taps, appliances without the need for a cold-water storage tank. 

Its compact capacity makes it ideal for  smaller homes, apartments, and en-suite systems, while the unvented design eliminates the need for a cold-water storage tank - freeing up valuable loft space and providing powerful water pressure at every outlet.

The Internal expansion design eliminates the requirement for an external expansion vessel, simplifying installation and saving valuable space. The indirect coil connection allows the unit to be heated by a boiler or renewable heat source, with an immersion heater connection for backup heating.

Features & Benefits

• Duplex stainless steel provides superior corrosion resistance
• 316L grade stainless-steel 22mm compression fittings and coils
• Supplies mains pressure hot water and high flow rates
• Fast reheat
• slimline - to fit in smaller cupboards
• Factory-fitted temperature and pressure relief value set at 10 bar / 90°C
• Full unvented kit supplied
• Highly efficient
• Fully insulated to minimise any heat loss
• 1 x factory-fitted 3kW immersion heaters for back up
• Available in 90–300 litre capacities* - *actual water capacity is less than product name - due to air gap
• Lifetime manufacturing warranty on inner container (2 years on components)*
• Renewable and bespoke options available