Flame control - 9 flame levels - from melting to boiling. Triple crown wok burner - the triple crown wok burner optimises the power of gas, delivering even heat around the pan, so you can whip up a stir fry in minutes. Flame failure device - if your flame goes out, the gas supply will stop automatically, giving you peace of mind. Electrical Connection - Plug In Product Dimensions (HxWxD) (mm) - 41 x 870 x 510 870mm Built-In 6 Burner Gas Hob Find just the right temperature with 9-level flame control. The cast iron pan supports are hard-wearing and give your hob a professional look. Turn up the heat with the wok burner that's perfect if you're searing meat or cooking a stir fry. Keep your kitchen safe - the flame failure safety device automatically cuts the gas flow if the flame goes out. This product requires installation by a qualified gas safe engineer.