Gledhill PLUHP180SL 180L Slimline Heat Pump Unvented Hot Water Cylinder

The Gledhill PLUHP180SL is a slimline unvented stainless steel hot water cylinder developed for heat pump systems, delivering mains-pressure domestic hot water while maximising the lower flow temperatures typical of air or ground source heat pumps.

With its compact 475 mm diameter, the cylinder suits retrofit installations where space is limited yet still provides 180 litres capacity. Built from high-specification duplex stainless steel with high-density insulation, it offers long-term durability and low heat loss for both domestic and light commercial use.

Key Features

• Multi-pass corrugated stainless steel heat exchanger coil for maximum heat transfer
• 3 kW incoloy immersion heater for emergency backup
• 90° elbow and drain valve supplied as standard
• ErP rating C with 67 W heat loss
• High-density HCFC-free Envirofoam insulation
• Vertical orientation, indirect design
• 25-year manufacturer warranty
• WRAS approved
• Secondary return not fitted

Benefits

• ✔ Optimised for efficient heat pump operation at lower temperatures
• ✔ Slim 475 mm diameter fits tight spaces without compromising capacity
• ✔ Mains-pressure hot water for multiple outlets simultaneously
• ✔ Low standing heat loss reduces running costs
• ✔ Corrosion-resistant duplex stainless steel construction
• ✔ Includes immersion heater for backup heating
• ✔ Long 25-year warranty for peace of mind
• ✔ Supplied with essential fittings for straightforward installation

Technical Specifications

• MPN: PLUHP180SL
• Capacity: 180 litres
• Height: 1791 mm
• Diameter: 475 mm
• Weight (empty): 37.5 kg
• Material: Duplex stainless steel
• Coil type: Multi-pass corrugated stainless steel
• Immersion heater: 3 kW incoloy
• ErP rating: C
• Heat loss: 67 W
• Warranty: 25 years

What’s in the Box?

1 x Gledhill PLUHP180SL StainlessLite Plus Heat Pump Slimline Unvented Cylinder, 1 x 3 kW incoloy immersion heater, cold water inlet controls, tundish, drain elbow, compression fittings, dual control and overheat thermostat, two-port zone valve and technical literature.