IE Direct STD

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

The JAB DUC IE Direct 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.

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. (1 X Immersion for the 90ltr model)

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
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