The Onyx 250 Litre Indirect Stainless Steel Unvented Cylinder is a high-capacity water storage solution ideal for large households or commercial properties with significant hot water demands. With a 250-litre capacity, it can efficiently supply hot water to multiple bathrooms, large homes, or properties with high water usage. Made from durable stainless steel, it ensures long-lasting reliability and corrosion resistance.

Complete with G3 unvented kit that includes:

·       1x Thermowatt 3kW Immersion Heater

·       1x Zilmet Expansion Vessel

·       1x Caleffi Tundish

·       1x Caleffi 22mm Inlet Control Group Set (inc PRV)

·       1x Intatec Dual Control Stat

·       1x Honeywell Home 22mm 2 Port Motorised Zone Valve

·       1x Factory Fitted Caleffi 7 Bar / 90°C Temperature & Pressure Relief Valve

·       1x Factory Fitted Secondary Return (On 200L, 250L and 300L Models Only)