What type of hearths should inspectors look out for that are not made of concrete or masonry?

The question focuses on the types of hearths that inspectors need to be aware of, specifically those that are not made from concrete or masonry. In this context, hearths serve as a critical component in fireplaces, providing a safe space to contain fires and protect the surrounding structure from heat and embers.

Hearths made from metal, wood, or plastic are potential concerns for inspectors. Metal hearths, while sometimes used, may not have the same thermal resistance as concrete or masonry and can become dangerously hot. Wooden hearths pose a significant risk because they can easily catch fire. Plastic is also an unsuitable material for hearths due to its flammability and inability to withstand high heat.

The question specifically asks for types of hearths that are not concrete or masonry, which implies a need for awareness about materials that can lead to safety hazards. Only choosing "hearths" does not provide clarity or specificity regarding the concerns inspectors need to focus on. An effective response would identify non-concrete or non-masonry materials like metal and wood, which could lead to dangerous situations, while also understanding that plastic is not suitable either.

In a practical inspection scenario, it's crucial for inspectors to identify all the materials used in the construction of hearths, especially