Gledhill PLTIN300PP 300L Platinum Indirect Pre-Plumbed Unvented Hot Water Cylinder

The Gledhill PLTIN300PP is a 300L Platinum Indirect pre-plumbed unvented hot water cylinder with built-in internal expansion, designed for use with gas or oil boilers in sealed or open-vented systems. Manufactured from high-specification duplex stainless steel, it eliminates the need for an external expansion vessel, saving space and reducing installation time.

Ideal for domestic properties with up to three bathrooms and multiple shower rooms, this vertical cylinder suits trade professionals and larger homes requiring efficient, high-flow hot water. It features 50mm insulation for low heat loss and comes pre-plumbed for quicker, error-free installation.

Key Features

• Pre-plumbed configuration with factory-fitted pipework and wiring
• Internal expansion via floating baffle – no external vessel required
• High-efficiency corrugated StainlessLite Supercoil for fast recovery
• Two 3kW incoloy immersion heaters for primary or backup heating
• 50mm HCFC-free Envirofoam insulation for minimal heat loss
• Lift-up temperature and pressure relief valve for easy drain-down
• Aligned tappings and 90° elbow for simplified installation
• Secondary return connection included
• 25-year warranty on cylinder (registration required)

Benefits

• ✔ Faster installation with pre-plumbed and pre-wired design
• ✔ Space-saving internal expansion for restricted areas
• ✔ Excellent energy efficiency with ErP C rating and low heat loss
• ✔ Rapid heat-up times thanks to corrugated coil technology
• ✔ Reliable mains-pressure performance for multiple outlets
• ✔ Robust duplex stainless steel construction for long service life
• ✔ Versatile compatibility with sealed or open-vented boiler systems
• ✔ Includes all necessary controls and safety components

Technical Specifications

• MPN: PLTIN300PP
• Brand: Gledhill
• Capacity: 265 litres
• Height: 1990 mm
• Diameter: 550 mm
• Empty Weight: 63 kg
• Full Weight: 328 kg
• Heat Loss: 89 W / 2.13 kWh/24h
• Heat-Up Time: 39 min
• Number of Immersions: 2 x 3 kW
• Secondary Return: Yes
• ErP Rating: C
• Material: Duplex stainless steel
• Insulation: 50 mm
• Orientation: Vertical
• Primary Coil Surface Area: 0.97 m²

What’s in the Box?

1 x Gledhill PLTIN300PP Platinum Indirect Pre-Plumbed Unvented Cylinder complete with pre-plumbed pipework, immersion heaters, controls, tundish, drain valve and literature.