Gledhill SESINPIN300 300 Litre ES Indirect Unvented Hot Water Cylinder

The Gledhill SESINPIN300 is a 300 litre (actual 295L) indirect unvented stainless steel hot water cylinder from the ES range. It stores hot water at mains pressure for properties with high demand, heated by a boiler via the internal coil and backed up by the supplied 3kW immersion heater.

Suitable for domestic use in larger homes, it provides strong flow rates for multiple bathrooms without needing a boost pump or cold water tank. Manufactured from highly corrosion-resistant duplex stainless steel with 40mm insulation for low heat loss, it suits new installs or replacements by qualified installers.

Key Features

• Indirect heating via boiler coil plus 3kW immersion heater
• Delivers mains pressure hot water for high flow rates
• Duplex stainless steel construction for corrosion resistance
• Supplied with external expansion vessel, immersion heater and control valve pack
• Manufactured to BS EN 12897 with WRAS and NSF WRC approvals
• High efficiency corrugated coil for fast reheat
• 40mm insulation to minimise heat loss
• Vertical orientation with plain pipe connections
• ErP Class C energy rating
• 25 year guarantee (extendable on registration)

Benefits

• ✔ Provides powerful hot water supply for showers and baths
• ✔ No need for cold water storage tank or boost pump
• ✔ Space-saving 530mm diameter design
• ✔ Reduced heat loss for lower running costs
• ✔ Reliable backup heating with immersion
• ✔ Long-term durability with stainless steel build
• ✔ Full unvented kit included for straightforward installation
• ✔ Suitable for gas or oil boilers, sealed or open vented
• ✔ Approved for safety and performance standards

Technical Specifications

• MPN: SESINPIN300
• Capacity: 295 litres
• Height: 1895mm (+80mm draw-off)
• Diameter: 530mm
• Weight Empty: 41kg
• Weight Full: 336kg
• Heat Loss: 92W / 2.2 kWh per 24h
• Immersion Heater: 3kW 240V AC
• Coil Rating: 18.3kW
• Material: Duplex stainless steel
• Colour: White
• Orientation: Vertical
• ErP Class: C

What’s in the Box?

1 x Gledhill SESINPIN300 ES Indirect 300L Unvented Cylinder with external expansion vessel, immersion heater and control valve pack.