An appliance must be designed for use with which type of fuel?

The correct answer emphasizes that an appliance must be designed to operate safely and efficiently with the specific type of fuel it will be connected to. Different appliances are engineered to handle various fuel sources, which impacts their design, operation, and safety features. For example, gas appliances incorporate components to manage gas flow and combustion, while electric appliances have wiring and circuitry optimized for electrical power.

The need for proper fuel compatibility ensures that the appliance performs as expected and meets safety standards relevant to its fuel type. Connecting an appliance to the wrong fuel can lead to inefficiencies, hazards, or even equipment failure. Thus, understanding the fuel compatibility of an appliance is essential for proper installation and operation in compliance with local codes and standards.