Onyx UnVented Indirect 170Litre Stainless Steel Cylinder

The Onyx 170Litre Indirect Stainless Steel Unvented Cylinder is available from TDL Online and features an internal coil and is designed to work with gas, oil, or biomass boilers as the primary heat source. It also includes a 3kW immersion heater for backup heating.

The Onyx Indirect Unvented Cylinder is constructed from premium Duplex stainless steel, ensuring excellent corrosion resistance and long-lasting durability. Suitable for a wide range of domestic and light commercial applications, it offers fast reheating and ample hot water delivery, making it an ideal choice for various projects.

Complete with G3 unvented kit that includes:

• 1x Pressure Reducing Valve
• 1x Expansion Vessel
• 1x 2 Port Valve
• 1x Dual Control Stat
• 1x Tundish
• 1x 3kW Immersion Heater
• 1x Factory Fitted Temperature and Pressure Relief Valve
• 1x Factory Fitted Secondary Return (200L, 250L and 300L Models Only)