Gledhill PLUHP300S 300L StainlessLite Plus Heat Pump Solar Unvented Hot Water Cylinder

The Gledhill PLUHP300S is a 300-litre unvented stainless steel hot water cylinder specifically engineered for use with heat pumps and solar thermal panels. It maximises heat transfer from lower-temperature sources while providing reliable mains-pressure domestic hot water.

Ideal for trade installers and homeowners seeking a durable, high-efficiency solution in new-build or replacement projects, this cylinder maintains all the proven features of the StainlessLite Plus range with an enhanced multi-pass corrugated coil design.

Key Features

• Designed for air source or ground source heat pumps in addition to solar thermal panels
• High-efficiency corrugated stainless steel coil maximises heat transfer
• 3kW incoloy immersion heater for emergency back-up
• 90° elbow, flexihose and drain valve supplied as standard
• 25-year manufacturer warranty
• ErP rating C
• Secondary return connection
• High-density HCFC-free insulation
• Duplex stainless steel construction
• Combination inlet group with pressure reducing valve and expansion relief

Benefits

• ✔ Optimised for lower heat pump flow temperatures
• ✔ Reduces pressure loss while maximising heat exchange
• ✔ Provides dedicated solar volume for compliance
• ✔ Delivers fast recovery and reliable hot water
• ✔ Includes essential safety and control components
• ✔ Suitable for domestic and light commercial use
• ✔ Long service life with minimal maintenance
• ✔ Compatible with standard UK heat pump and solar systems
• ✔ Trade-proven build quality from a leading UK manufacturer

Technical Specifications

• MPN: PLUHP300S
• Capacity: 287 litres
• Height: 1990 mm
• Diameter: 550 mm
• Weight (empty): 48 kg
• Weight (full): 335 kg
• HP coil surface area: 2.04 m²
• Dedicated solar volume: 102 litres
• Heat loss: 86 watts
• ErP rating: C
• Immersion heater: 3 kW incoloy (1 off)
• Secondary return: Yes
• Material: Stainless steel
• Warranty: 25 years

What’s in the Box?

1 x Gledhill PLUHP300S StainlessLite Plus Heat Pump Solar Unvented Cylinder, 1 x 3kW incoloy immersion heater, inlet group, 90° elbow, flexihose, drain valve and associated controls.