Twin Coil Cylinders

Glow-worm's twin coil cylinder has one coil which heats water using power from the boiler and the second coil which heats water using energy from a solar panel. Whether you are installing a solar system now or simply preparing for the future, Glow-worm twin coil cylinders are fully compatible with any open vent or sealed system boiler and fit easily through any standard airing cupboard door.

Special construction of the coils inside the cylinder ensures that the top 2/3 of the cylinder is heated first enabling high volumes of hot water to be delivered on demand and the thermostatic mixing valve mix cold water into the solar heated water to achieve the required temperature for safewater usage.

Key Features

• Twin coil available in 200, 250 & 300 litres
• High grade stainless steel cylinder with laser welded seams
• Insulation meeting CheSS best practice as low as 1.7kWh/24hrs1
• High recovery heating coil -just 20 minutes
• External expansion vessel supplied
• Covered controls and wiring box
• Simple maintenance - no anode required
• High flow rates achievable working at 3.5bar pressure
• 25 year warranty on cylinder shell