Gledhill SESINPIN150 150L ES Indirect Unvented Stainless Steel Hot Water Cylinder

The Gledhill SESINPIN150 is a 150 litre (nominal) indirect unvented hot water cylinder from the Stainless ES range, designed for use with gas or oil boilers in sealed or open vented systems. It provides mains-pressure hot water for showers and baths without needing a boost pump, making it ideal for modern UK homes with moderate hot water demand.

Manufactured from highly corrosion-resistant duplex stainless steel with 40mm insulation, this cylinder offers excellent durability, reduced heat loss and a 25-year warranty. It comes complete with a 3kW immersion heater for backup, high-efficiency corrugated coil for faster reheat, and a full G3 unvented kit including expansion vessel and control valves.

Key Features

• Indirect configuration with boiler coil and 3kW immersion heater
• Duplex stainless steel construction for corrosion resistance
• 40mm insulation minimises standing heat loss
• High-efficiency corrugated primary coil for rapid recovery
• WRAS and NSF WRC approved
• Supplied with full G3 unvented kit and expansion vessel
• Vertical floor-standing design with plain pipe connections
• ErP rating B for energy efficiency
• 25-year manufacturer warranty

Benefits

• ✔ Provides powerful mains-pressure hot water for multiple outlets
• ✔ Faster reheat times thanks to corrugated coil design
• ✔ Long-term reliability with duplex stainless steel and 25-year warranty
• ✔ Easy installation with comprehensive kit supplied
• ✔ Reduced running costs from effective insulation
• ✔ Suitable for new builds or replacement in existing properties
• ✔ No loft tank required, saving space
• ✔ Backup electric heating for added flexibility

Technical Specifications

• MPN: SESINPIN150
• Capacity: 149 litres
• Height: 1012 mm
• Diameter: 530 mm
• Empty Weight: 23 kg
• Full Weight: 172 kg
• Heat Loss: 52 W (1.24 kWh/24hr)
• ErP Rating: B
• Primary Heat Exchanger Surface Area: 0.59 m²
• Immersion Heater: 3 kW

What’s in the Box?

1 x Gledhill SESINPIN150 150L Indirect Unvented Cylinder with immersion heater, G3 kit (PRV, expansion relief, T&P relief valve, dual thermostat, motorised valve, tundish), expansion vessel, mounting bracket and literature.