Good to know- The black glass surface of this gas hob looks elegant and is easy to clean- With 4 burners of varying sizes, you can choose the ideal heat for your pots and pans- Cast iron supports keep your pans stable while you're cooking- The flame failure device keeps you safe by cutting off the gas supply if the flame goes out- If you need to use bottled gas, this hob includes an LPG conversion kit_________________________________________________GAS INSTALLATION: This product requires installation by a qualified gas safe engineer, such as one of our Tech Experts (available in the UK only).ELECTRICAL INSTALLATION: This product requires professional installation to a 13 Amp fused spur by a qualified installer, such as one of our Tech Experts.