Joule Invacyl Direct Standard 250Litre Cylinder

Joule Invacyl Direct Standard 250Litre Cylinder

The Joule Invacyl Direct Standard 250Litre Cylinder is a high-performance, unvented hot water storage solution designed specifically for properties with electricity as the primary energy source. Built to deliver high-pressure hot water to multiple outlets, this 250L direct cylinder is the perfect choice for medium-to-large family homes that require a reliable, high-volume supply for showers, baths, and taps without the need for a central heating boiler.

High-Performance Direct Electric Heating

As a direct unvented cylinder, the Invacyl utilizes high-quality internal immersion heaters to heat the water directly. It is typically supplied with two 3kW Incoloy immersion heaters, allowing for flexible usage. The lower element can be timed to take advantage of off-peak electricity tariffs (such as Economy 7), while the upper element serves as a "boost" for rapid reheating during periods of high demand.

Duplex Stainless Steel for Maximum Longevity

The Joule Invacyl is manufactured from high-grade Duplex stainless steel, providing a superior strength-to-weight ratio and exceptional resistance to corrosion. Unlike traditional copper or glass-lined cylinders, Duplex steel does not require a sacrificial anode, ensuring a low-maintenance life cycle and a cleaner internal environment for your domestic hot water.

Key Features & Benefits

• 250 Litre Capacity: Ideal for households with 3–4 occupants and multiple bathrooms.
• Mains Pressure Performance: Delivers powerful hot water flow rates throughout the property, ensuring consistent pressure even when multiple taps are in use.
• Fast Recovery Times: Optimized immersion heater placement ensures efficient heating and rapid recovery from cold.
• Superior Thermal Retention: Insulated with high-density, CFC-free polyurethane foam to minimize standing heat loss and improve energy efficiency.
• Complete Safety Kit: Each unit is supplied with a comprehensive G3 unvented kit, including an expansion vessel, pressure-reducing valve, and temperature/pressure relief safety valves.
• Modern Aesthetic: Features a sleek, wipe-clean outer casing, making it suitable for utility room or airing cupboard installations.

Technical Specifications

• Material: High-Grade Duplex Stainless Steel
• Type: Direct Unvented (Electric Only)
• Storage Volume: 250 Litres
• Heating Elements: 2 x 3kW Immersion Heaters
• Warranty: 25-year manufacturer guarantee on the inner vessel (subject to terms)

The Joule Invacyl 250L offers a blend of quality engineering and energy efficiency, providing a robust "fit and forget" solution for modern electric-only homes.