Telford Tempest 300Ltr Indirec Unvented Horizontal Cylinder

Telford Tempest 300Ltr Indirec Unvented Horizontal Cylinder

The Telford Tempest 300Ltr Indirect Unvented Horizontal Cylinder is the ultimate space-saving hot water storage solution for large-scale domestic properties. Engineered specifically for installations where vertical height is restricted—such as lofts, crawl spaces, or under-stair voids—this 300-litre horizontal cylinder provides high-capacity mains pressure hot water without requiring a traditional tall airing cupboard.

Innovative Horizontal Design

While standard cylinders rely on vertical height for thermal stratification, the Telford Tempest Horizontal range uses specialized internal baffling to ensure efficient heat distribution. This 300L model is designed to deliver consistent, high-flow hot water to multiple bathrooms and high-demand outlets simultaneously, making it ideal for large 4–5 bedroom family homes.

Premium Duplex Stainless Steel Build

Manufactured in the UK, the cylinder is constructed from high-grade Duplex 2304 stainless steel. This material is selected for its exceptional strength and superior resistance to corrosion compared to standard 316L stainless steel. Because of this robust construction, the Tempest Horizontal does not require a sacrificial anode, leading to a low-maintenance "fit and forget" installation that stands the test of time.

Key Features & Benefits

• 300 Litre Storage Capacity: Perfect for properties with multiple showers and high-volume baths.
• Low-Profile Horizontal Orientation: Enables installation in locations with limited headroom where a vertical unit would not fit.
• High-Efficiency Indirect Reheat: Features a 22mm corrugated internal coil that maximizes heat transfer from your boiler (gas, oil, or electric) for rapid recovery times.
• Industry-Leading Insulation: Wrapped in 60mm of CFC-free, injected polyurethane foam, ensuring minimal standing heat loss and high thermal efficiency.
• Complete G3 Safety Kit: Supplied with a full installation kit, including a 24-litre expansion vessel, 3 bar inlet control group, and a dual-high-limit thermostat.
• Lifetime Warranty: Telford provides a lifetime guarantee on the inner cylinder shell, reflecting the premium British engineering.

Technical Specifications

• Material: High-Grade Duplex 2304 Stainless Steel
• Model Type: Indirect Horizontal Unvented
• Heating Type: Indirect (Boiler-fed) with 3kW Immersion Backup
• Dimensions: Approximately 1650mm (Length) x 580mm (Diameter)
• Energy Rating: ErP Class C

The Telford Tempest 300L Horizontal is a versatile and reliable choice for modern high-pressure plumbing systems. It combines the massive storage capacity required for large households with the flexibility to be installed in unconventional spaces.