In the context of gas stoves in England (and in many other countries), the blue and red flames you may observe have specific functions and characteristics:
Blue Flames: The primary, consistent blue flames on a gas stove indicate that the gas is burning efficiently. When natural gas or propane burns efficiently, it produces a blue flame, which indicates that the fuel is mixing well with oxygen, and complete combustion is occurring. This results in a clean and efficient burn, with minimal production of harmful byproducts.
Red Flames: The red or orange flames you sometimes see on a gas stove are usually an indication of incomplete combustion. This occurs when there is not enough oxygen available for the gas to burn fully. In such cases, the gas is not burning efficiently, and the flame produces a reddish or orange color due to the presence of unburned carbon particles. These flames can be less efficient and may produce more carbon monoxide and other potentially harmful byproducts.
If you consistently see red or orange flames on your gas stove, it could be a sign of improper ventilation, incorrect gas pressure, or a need for maintenance. It's essential to address this issue promptly to ensure safe and efficient operation of the appliance.
Modern gas stoves are designed to burn gas efficiently and should generally produce mostly blue flames. However, occasional orange or red flickers can be normal during ignition or when adjusting the flame level. If you notice persistent red flames, it is advisable to have a qualified technician inspect and service the stove to ensure proper functioning and safety. Regular maintenance of gas appliances is essential to ensure their safe and efficient operation.