Gledhill SESINPDR250 250L ES Direct Unvented Stainless Steel Hot Water Cylinder

The Gledhill SESINPDR250 is a 250L (248L actual capacity) direct unvented stainless steel hot water cylinder from the ES range. It delivers mains-pressure hot water for high flow rates in showers and baths without needing a boost pump, making it perfect for modern domestic properties with multiple outlets.

Manufactured from highly corrosion-resistant duplex stainless steel with 40mm insulation, this vertical cylinder offers excellent durability, low heat loss and WRAS/NSF WRC approvals. It suits trade installers and homeowners replacing or installing new unvented systems in UK homes.

Build quality includes plain pipe connections for compression fittings and a 25-year guarantee (extendable on registration for domestic use).

Key Features

• Direct heating via immersion heaters
• 248 litre actual capacity
• Duplex stainless steel construction
• 40mm high-performance insulation
• WRAS and NSF WRC approved
• BS EN 12897 compliant
• Vertical orientation
• Supplied with external expansion vessel, immersion heater and control valve pack
• 3kW 240V AC immersion heater rating
• ErP Class C rating

Benefits

• ✔ Provides reliable mains-pressure hot water for high-demand households
• ✔ Reduces heat loss with thick insulation for lower running costs
• ✔ Corrosion-resistant duplex steel for long service life
• ✔ No boost pump required for good flow rates
• ✔ Easy installation with plain pipe connections
• ✔ Full safety approvals for peace of mind
• ✔ Value-engineered Gledhill quality at competitive price
• ✔ 25-year manufacturer guarantee (domestic registration)
• ✔ Recycled materials used in construction

Technical Specifications

• MPN: SESINPDR250
• Capacity: 248 Litres
• Height: 1603mm (+80mm for draw-off)
• Diameter: 530mm
• Weight Empty: 33kg
• Weight Full: 281kg
• Heat Loss: 79 Watts / 1.89 kWh/24h
• Immersion Heater: 3kW, 240V AC
• Material: Duplex Stainless Steel
• Insulation: 40mm
• Orientation: Vertical
• ErP Class: C
• Colour: White
• Operating Pressure (PRV): 3 bar

What’s in the Box?

1 x Gledhill SESINPDR250 ES Direct Unvented Cylinder, 1 x External 18L Expansion Vessel, 1 x Immersion Heater, Control Valve Pack.