Gledhill PLTDR150 150L Platinum Direct Internal Expansion Unvented Hot Water Cylinder

The Gledhill PLTDR150 is a direct unvented hot water cylinder from the Platinum range, featuring internal expansion to eliminate the need for an external vessel. Manufactured from high-specification duplex stainless steel, it suits domestic properties with electric heating, including mains or photovoltaic supply.

Perfect for new installations or replacements where space is limited, this vertical cylinder delivers mains-pressure hot water efficiently using off-peak tariffs. Trade professionals and homeowners benefit from its robust build and 25-year warranty (with registration).

Key Features

• Built-in internal expansion for compact installation
• Two 3kW Incoloy immersion heaters (on-peak and off-peak)
• High-specification duplex stainless steel construction
• 50mm insulation for low heat loss
• Factory-fitted temperature and pressure relief valve (6 bar, 95°C)
• Floating baffle and lift-up T&PR valve for easy drain-down
• 90° elbow supplied for quicker installation
• Aligned tapping positions
• ErP Class B/C rating
• Compatible with economy electricity tariffs and PV panels

Benefits

• ✔ No external expansion vessel required – saves space and installation time
• ✔ Maximises efficiency with off-peak heating
• ✔ Long 25-year warranty on cylinder for peace of mind
• ✔ High-quality stainless steel for durability and corrosion resistance
• ✔ Quick and straightforward installation with supplied fittings
• ✔ Suitable for properties with 1-2 bathrooms
• ✔ Low heat loss maintains energy efficiency
• ✔ Reliable performance from established UK manufacturer

Technical Specifications

• MPN: PLTDR150
• Capacity: 150L (139L actual)
• Height: 1118mm
• Diameter: 550mm
• Empty Weight: 29.5kg
• Full Weight: 168kg
• Heat Loss: 51W
• Heat Up Time: 154 min
• Immersion Heaters: 2 x 3kW Incoloy
• Material: Duplex Stainless Steel
• Orientation: Vertical
• ErP Rating: B/C
• Warranty: 25 years (cylinder)

What’s in the Box?

1 x Gledhill PLTDR150 Platinum Direct 150L Unvented Cylinder with internal expansion, 2 x 3kW immersion heaters, T&PR valve, 90° elbow and drain valve.