Which material is less likely to contribute to a building's fuel load?

Metal appliances are less likely to contribute to a building's fuel load because they are non-combustible materials. Unlike organic materials such as wood, textiles, or finishes, metal does not burn easily and does not release energy in the form of heat when exposed to fire. This characteristic makes metal appliances a safer option in terms of fire risk, as they do not add combustible mass that can sustain a fire.

Furnishings, wooden floors, and interior finishes are generally made from materials that can ignite and contribute to the overall fuel load in a fire situation, thus increasing the intensity and spread of a fire. In contrast, metal appliances help to reduce the overall fire risk within a building.