Duct heaters are generally used as what type of heating device?

Duct heaters are typically used as auxiliary heaters. They serve to supplement the primary heating system, providing additional warmth when necessary, particularly during cold weather or when the primary system is insufficient to meet heating demands. This is especially useful in larger spaces or during peak demand periods where extra heating can enhance comfort.

Auxiliary heating through duct heaters can be strategically utilized to warm specific areas of a building that may not receive adequate heat from the main heating system, ensuring consistent and comfortable temperatures throughout. The design and placement of duct heaters allow them to be integrated seamlessly into existing ductwork, delivering warmth directly into the air distribution system.

Understanding the role of duct heaters as auxiliary devices is important for HVAC professionals when designing and troubleshooting heating systems, ensuring that all areas of a building are effectively heated as needed.