Gledhill StainlessLite Plus Heat Pump 250L Cylinder

The Gledhill StainlessLite Plus Heat Pump 250L Cylinder is a high-quality unvented stainless steel hot water cylinder specifically engineered for use with air source and ground source heat pumps. It delivers mains pressure domestic hot water by efficiently transferring heat from the lower temperature output typical of heat pump systems.

Key Features

• Capacity: Approximately 248–250 litres
• Material: Durable duplex stainless steel construction resistant to corrosion
• Heat Exchanger: High-efficiency multi-pass corrugated stainless steel coil designed to maximise heat transfer from heat pump flow temperatures around 50–60°C while minimising pressure loss
• Immersion Heater: 3 kW Incoloy immersion heater with thermostat pocket for emergency or backup heating
• Dimensions: Height approx. 1744 mm, Diameter 550 mm
• Weight: Empty weight approx. 42 kg (commonly reported, may vary by source)
• Insulation: Typically fitted with 50 mm HCFC-free insulation for reduced heat loss
• Included Accessories: Compression fittings, pressure and temperature relief valve, 90° elbow for hot water draw-off, flexible hose for expansion vessel connection
• Design Notes: Features immersion heater thermostat control to activate backup heating below heat pump max temperature and cutoff at 60–65°C to reduce direct electricity use while preventing legionella risk
• Variants: Standard diameter and Slimline version (approx. 475 mm diameter) for restricted space installations
• Warranty: 25 years manufacturer guarantee

Applications

• Ideal for residential or light commercial hot water systems using air or ground source heat pumps
• Designed for systems requiring mains pressure domestic hot water with efficient low temperature heat transfer
• Suitable where heat pumps may not regularly raise stored water temperature to 60°C

Technical Specifications

This cylinder provides a robust, energy-efficient solution designed for heat pump applications, combining Gledhill’s proven StainlessLite Plus unvented cylinder technology with heat pump optimised heat exchange and backup controls to ensure safe, reliable mains pressure hot water.