Gledhill Stainless Platinum 120L Direct Unvented Cylinder – PLTDR120

PLEASE NOTE: We can only deliver this cylinder to mainland England addresses.

The Gledhill Stainless Platinum 120L Direct Unvented Cylinder provides stored mains-pressure hot water for flats, apartments and smaller homes. It has a nominal size of 120 litres and an actual capacity of approximately 108 litres.

Two 3kW Incoloy immersion heaters heat the stored water. Therefore, the PLTDR120 suits properties that use electricity for hot water instead of a boiler-fed heating coil.

The cylinder can use mains electricity or a suitable supply from photovoltaic solar panels. In addition, homeowners may use suitable off-peak electricity tariffs to heat water when energy costs are lower.

Gledhill builds the cylinder from high-specification Duplex stainless steel. Meanwhile, high-density HCFC-free Envirofoam insulation helps reduce heat loss and keep the stored water hot.

The internal expansion design removes the need for a separate external expansion vessel. As a result, it creates a neat installation, saves space and can provide easier access for future maintenance.

Product Guides and Further Information

• Download the Gledhill Stainless Platinum brochure
• Download the Gledhill Stainless Platinum installation instructions
• View the Gledhill Stainless Platinum Direct range
• Gledhill Platinum vs Megaflo comparison

Gledhill Stainless Platinum 120L Direct Cylinder Features

• Direct unvented hot water cylinder
• Manufacturer model number: PLTDR120
• Nominal cylinder size: 120 litres
• Actual capacity: approximately 108 litres
• Designed for direct electric hot water systems
• Includes two 3kW Incoloy immersion heaters
• Suitable for mains electricity
• Can work with a suitable photovoltaic electricity supply
• Suitable for use with compatible off-peak electricity tariffs
• Supplies mains-pressure hot water
• Internal expansion saves installation space
• No separate external expansion vessel required
• High-specification Duplex stainless steel construction
• High-density HCFC-free Envirofoam insulation
• ERP energy rating: B
• 25-year cylinder warranty, subject to Gledhill’s terms

Technical Specification

• Manufacturer: Gledhill
• Range: Stainless Platinum
• Model: PLTDR120
• Cylinder type: Direct unvented cylinder
• Nominal size: 120 litres
• Actual capacity: Approximately 108 litres
• Heating method: Two 3kW Incoloy immersion heaters
• Heat-up time: Approximately 103 minutes
• ERP rating: B
• Empty weight: Approximately 26kg
• Full weight: Approximately 135kg
• Secondary return: Not applicable
• Maximum inlet pressure: 10 bar
• Pressure-reducing valve: 3 bar
• Maximum working pressure: 5 bar
• Cylinder material: Duplex stainless steel
• Insulation: High-density HCFC-free Envirofoam
• Warranty: 25 years, subject to Gledhill’s terms

Cylinder Dimensions

• Height: 931mm
• Diameter: 550mm

Before ordering, check the available space for the cylinder, valves and pipework. Also, leave enough room for servicing and maintenance. Your installer should confirm the dimensions and loaded weight against Gledhill’s latest technical instructions.

What Comes with the Cylinder?

• 1 x Gledhill Stainless Platinum unvented cylinder
• 2 x 3kW Incoloy immersion heaters
• 1 x lift-up temperature and pressure relief valve
• 1 x tundish

The cylinder contains an internal expansion system, so it does not need a separate external expansion vessel. However, your installer may need additional valves, discharge pipework and fittings to complete the installation.

Where Can You Use This 120L Direct Cylinder?

The Gledhill Stainless Platinum PLTDR120 may suit flats, apartments and smaller homes with moderate hot water demand. For example, it may suit a property with fewer occupants and a limited number of hot water outlets.

Because this is a direct cylinder, its immersion heaters heat the stored water. It does not use a boiler-fed coil. Therefore, it can work well in properties with electric heating, no gas supply or a suitable photovoltaic system.

However, every household uses hot water differently. The correct cylinder size depends on the number of occupants, bathrooms, showers, baths and taps. For this reason, ask a qualified installer to confirm the required capacity before ordering.

Benefits of Internal Expansion

Many unvented systems use a separate external expansion vessel. In contrast, the Gledhill Stainless Platinum stores expansion water within the cylinder system.

Consequently, the installer has fewer external components to position around the cylinder. This feature can create a neater installation, save cupboard space and make future maintenance easier.

Benefits of Mains-Pressure Hot Water

The cylinder connects directly to the incoming mains water supply. Therefore, it does not need a traditional cold water storage tank in the loft.

With suitable incoming flow and pressure, the cylinder can provide strong hot water performance at showers, baths and taps. However, it cannot improve a weak mains supply. Your installer should test the property’s water flow and pressure before recommending an unvented cylinder.

Why Choose a Gledhill Stainless Platinum Cylinder?

The Stainless Platinum range combines strong materials, internal expansion and practical electric water heating. As a result, it provides a neat solution for homes that need a direct unvented cylinder.

First, the Duplex stainless steel body helps resist corrosion. Next, the Envirofoam insulation helps retain heat. Finally, the internal expansion system reduces the number of external components needed around the cylinder.

In addition, the two immersion heaters allow the cylinder to heat water without a boiler. This makes the PLTDR120 a practical option for suitable all-electric properties.

What Are Customers Saying About Gledhill?

Reviews for individual Stainless Platinum models may be limited. However, wider customer feedback about Gledhill often mentions helpful technical support, knowledgeable engineers and clear product advice.

• Helpful technical support
• Knowledgeable service engineers
• Clear explanations and practical advice
• Effective fault finding and repairs
• Support from an established UK manufacturer

Read customer reviews about Gledhill on Trustpilot.

Why Buy from SNH Tradecentre?

• Competitive prices: We aim to offer excellent value across the Gledhill cylinder range.
• Helpful advice: Our team can help you compare cylinder sizes and heating types.
• Genuine Gledhill products: Buy from an established plumbing and heating merchant.
• Clear product information: We provide technical details and useful installation documents.
• Mainland England delivery: We can arrange direct delivery to eligible addresses.
• Trade and public welcome: We supply homeowners, landlords, plumbers and heating engineers.
• Independent UK merchant: SNH Tradecentre operates from Birchington, Kent.

Not sure whether the Gledhill Stainless Platinum 120L Direct Cylinder suits your property? Contact SNH Tradecentre before ordering. Our team can help you compare direct and indirect unvented cylinders.

Read Reviews from SNH Tradecentre Customers

Read independent feedback about our customer service, product advice and ordering experience. These reviews can help you buy from SNH Tradecentre with confidence.

Read SNH Tradecentre customer reviews on Google.

Installation Requirements

A trained and qualified installer must fit and commission this unvented cylinder. The installer must also hold the correct certification for work on unvented hot water systems.

The installation must comply with Part G3 of the Building Regulations in England and Wales. In addition, installers must follow Technical Standard P3 in Scotland, Building Regulation P5 in Northern Ireland and the latest Gledhill installation instructions.

Your installer should also check the mains water supply, electrical supply, discharge route, installation space and supporting floor before starting work.

Frequently Asked Questions

Is the Gledhill PLTDR120 a direct or indirect cylinder?

The PLTDR120 is a direct unvented cylinder. Two 3kW immersion heaters heat the stored water. Therefore, it does not need a boiler-fed heating coil.

What is the actual capacity of the PLTDR120?

Gledhill describes this product as a 120-litre model. However, its actual stored water capacity is approximately 108 litres.

Does the cylinder include immersion heaters?

Yes. The package includes two 3kW Incoloy immersion heaters for direct electric water heating.

Can it work with photovoltaic solar panels?

The cylinder can use electricity generated by a suitable photovoltaic system. However, a qualified installer must confirm compatibility and specify any additional controls or equipment.

Can I use it with an off-peak electricity tariff?

Yes, the two-immersion design can work with suitable economy or off-peak tariffs. Nevertheless, your electricity supplier and installer should confirm the tariff, wiring and control arrangement.

Does it need an external expansion vessel?

No. The Stainless Platinum range uses an internal expansion design. As a result, it does not normally need a separate external expansion vessel.

Can it provide mains-pressure hot water?

Yes. The cylinder takes water directly from the mains. Therefore, it can provide good pressure when the property has suitable incoming water flow and pressure.

Who can install this unvented cylinder?

A qualified installer with the correct unvented hot water certification must complete the work. They must also follow current Building Regulations and Gledhill’s latest instructions.

Where can SNH Tradecentre deliver this cylinder?

We can deliver this product to mainland England addresses only. Please contact SNH Tradecentre if you would like us to check your postcode before ordering.

Order the Gledhill Stainless Platinum PLTDR120

Choose the Gledhill Stainless Platinum 120L Direct Unvented Cylinder PLTDR120 for electric water heating, internal expansion and mains-pressure hot water performance.

Before ordering, ask your installer to confirm the required capacity, available space, electrical supply and incoming water performance. Then, contact SNH Tradecentre if you need product advice or delivery information.

Manufacturers may update specifications, packaging and supplied components without notice. Therefore, check the latest Gledhill technical literature before ordering or installing this cylinder.