What is hardware cloth typically used for in HVAC systems?

The use of hardware cloth in HVAC systems is primarily associated with covering outside air intakes. This type of mesh material is made from wire and has small openings, allowing air to flow through while preventing larger debris and pests from entering the intake. By using hardware cloth over air intakes, HVAC systems can maintain cleaner airflow and increase efficiency by reducing potential blockages caused by leaves, twigs, or small animals.

While options such as reinforcing concrete and acting as a replacement for expanded metal may seem relevant in other contexts, they do not pertain to the specific functionality of hardware cloth within HVAC systems. Additionally, although a bug screen serves a similar purpose, it is usually made of finer mesh and used for different types of openings, making hardware cloth the more appropriate choice for covering outside air intakes in HVAC applications.