SuperFlow Twin Coil Unvented Cylinders

The World Heat Cylinders' SuperFlow Twin Coil range features high-quality stainless steel unvented cylinders, specifically designed for applications utilising two separate heat sources. Typically, these are ideal for integrating a conventional boiler with a renewable energy source, such as solar thermal panels or, in some configurations, a heat pump. Our SuperFlow Twin Coil Unvented Cylinders are engineered to provide maximum efficiency and flexibility, with standard twin coil sizes from 90 to 500 litres, in ultra slim, slimline and standard diameters, and bespoke cylinders built to order.

Manufactured from premium Duplex stainless steel, these cylinders offer exceptional corrosion resistance and durability. They incorporate high-density, eco-friendly foam insulation to minimise heat loss, ensuring that energy from both heat sources is effectively stored and readily available.

SuperFlow Twin Coil cylinders provide several key benefits for modern heating systems:

• Dual Heat Source Utilisation: Efficiently harness energy from two independent heat sources. For instance, a lower coil can be dedicated to a renewable source like solar thermal, providing primary heating, while an upper coil connects to a boiler for backup or boost heating.
• Maximised Renewable Energy Contribution: Prioritises the use of free or lower-cost renewable energy, reducing reliance on fossil fuels and lowering energy bills.
• Consistent Hot Water Supply: Ensures reliable hot water availability, even when the primary renewable source is insufficient, thanks to the secondary coil.
• Space Saving: Integrates two heat inputs into a single cylinder, often saving plant room space compared to separate buffer and DHW cylinders.
• High Flow Rates: As unvented cylinders, they deliver mains pressure hot water to multiple outlets.
• Durability & Guarantee: Constructed from high-grade stainless steel and backed by our 25 year guarantee on stainless steel unvented cylinders up to 300 litres.
• Stainless steel cylinders over 300 litres: 12 months on the vessel, against a material defect or manufacturing fault.
• Quality Manufacturing: Built to ISO 9001 standards in our UK facility.

While our standard SuperFlow Twin Coil range covers many common applications, World Heat Cylinders specialises in providing bespoke solutions. If your project requires specific coil sizes, non-standard tapping positions, particular orientations (including horizontal twin coil units), or integration with unique control strategies, our technical team can assist. We can design and manufacture a twin coil unvented cylinder tailored precisely to your system's requirements.

For further information on customisation or to discuss your unique project, please contact our technical sales support team on 0161 343 8610 or email sales@whcylinders.co.uk.

The renowned quality of our SuperFlow Twin Coil unvented cylinders stems from our dedication to superior materials and precise manufacturing techniques. Key quality assurances include:

• A 25 year guarantee on stainless steel unvented cylinders up to 300 litres, reflecting our confidence in the materials and manufacturing expertise.
• Stainless steel cylinders over 300 litres: 12 months on the vessel, against a material defect or manufacturing fault.
• A robust, plastic-coated galvanised steel case for durability and appearance.
• Efficient, environmentally friendly foam injected insulation with zero ozone depletion potential (ODP).
• All units are manufactured in adherence to stringent ISO 9001 quality management protocols.