How should an LP gas appliance be shut off in an emergency?

In an emergency involving an LP gas appliance, the correct action is to turn off the main valve on the gas supply. This procedure is crucial because it immediately stops the flow of gas to the appliance, thereby minimizing the risk of a gas leak, explosion, or fire. Gas appliances are designed to operate using a continuous supply of gas, and if an emergency occurs—such as a detected leak or malfunction—quickly shutting off the main valve ensures safety by preventing additional gas from entering the appliance.

Unplugging the appliance or removing the battery does not address the underlying issue of gas flow. These actions may stop the appliance from operating, but they do not prevent gas from leaking if there is a malfunction. Covering the appliance with a blanket does not provide any safety benefit and could potentially exacerbate the situation by blocking ventilation or trapping heat. Therefore, the most effective and safest response in an emergency situation is to turn off the main valve on the gas supply.