IE Direct Slimline

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

The JAB DUC IE Direct 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 cylinders are supplied with two, factory-fitted 3kW immersion heaters which provide the option of heating water on different schedules, tariffs and configurations.

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
Factory-fitted temperature and pressure relief value set at 10 bar / 90°C
slimline - to fit smaller cupboards
Full unvented kit supplied
Highly efficient
Fully insulated to minimise any heat loss
2 x factory-fitted 3kW immersion heaters (1 X 3kw on 90ltr)
Available in 60–300 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