500L Indirect High Gain Telford Tempest Vertical Unvented Cylinder TSMI500/HG

500L Indirect High Gain Telford Tempest Vertical Unvented Cylinder 

The Telford Tempest Indirect High Recovery Unvented Hot Water Cylinder is designed to deliver reliable, high-performance hot water for homes with greater hot water demands.

Manufactured from high-quality Duplex stainless steel , this cylinder offers excellent durability, corrosion resistance and long-lasting performance.

Featuring a high-performance internal heating coil, the Tempest High Recovery cylinder provides fast reheat times and excellent hot water flow rates , making it ideal for busy households requiring a consistent supply of mains pressure hot water.

Designed for use with gas or oil-fired boilers on either sealed or open-vented heating systems, the cylinder also includes a factory-fitted 3kW immersion heater for additional or back-up water heating.

The external expansion vessel design helps provide a practical and efficient installation, while high-quality insulation minimises heat loss and improves energy efficiency.

Key Features & Benefits

• High Recovery Performance – Fast reheat times to ensure hot water is readily available when needed.

• Duplex Stainless Steel Construction – Excellent corrosion resistance, strength and long-term reliability.

• 316L Stainless Steel Components – High-quality internal heating coil and 22mm compression fittings.

• Mains Pressure Hot Water – Delivers excellent water pressure and high flow rates for showers, baths and multiple outlets.

• Energy Efficient Design – Fully insulated to reduce heat loss and improve efficiency.

• Factory-Fitted 3kW Immersion Heater – Provides convenient back-up hot water heating.

• External Expansion Vessel – Supplied with a factory-fitted wall mounting bracket for straightforward installation.

• Complete Unvented Installation Kit – Includes the essential safety and installation components.

• Temperature & Pressure Relief Valve – Factory-fitted safety valve rated at 7 bar / 90°C.

• Wide Range of Sizes – Available in capacities from 125 litres to 500 litres.

• Lifetime Cylinder Warranty – Lifetime manufacturing warranty on the inner cylinder, with a 2-year warranty on components.*

• Additional Options Available – Renewable energy compatible and bespoke cylinder options available.

Why Choose the Telford Tempest High Recovery Cylinder?

The Telford Tempest High Recovery range is an excellent choice for properties requiring a dependable supply of hot water with minimal waiting time between uses.

Combining rapid heat recovery, high flow rates and durable stainless steel construction , these cylinders are particularly suited to larger households and properties with multiple bathrooms.

With a comprehensive unvented installation kit, back-up immersion heater and lifetime inner cylinder warranty, the Tempest High Recovery range offers excellent performance and long-term peace of mind.

Available from TDL Online – your trusted supplier of plumbing, heating and hot water cylinders.

*Warranty subject to manufacturer's terms and conditions.