What material should hangers and brackets for suspended-type unit heaters be made of?

Hangers and brackets for suspended-type unit heaters should be made of noncombustible materials to ensure safety and compliance with fire codes. This is particularly important because unit heaters can generate significant heat during operation. Using noncombustible materials minimizes the risk of fire hazards associated with high temperatures.

While other materials like metal might seem suitable due to strength, they can still conduct heat and pose risks if not appropriately insulated or situated. Plastic and wood are not suitable choices because they can easily catch fire or degrade under heat exposure. Noncombustible materials provide the necessary strength while ensuring that the structural integrity remains intact even under high temperatures, thereby enhancing overall safety and performance in heating applications.