What is the maximum discharge temperature for ducts in a warm air heating system?

The maximum discharge temperature for ducts in a warm air heating system is considered to be 250°F. This standard is established to ensure the safety of the system and to minimize the risk of thermal damage to the ductwork and any materials in close proximity to the ducts.

Exceeding this temperature can lead to issues such as the degradation of duct insulation, which can compromise system efficiency and lead to potential hazards like fire if the temperatures reach alarming levels. By maintaining the maximum discharge temperature at 250°F, systems can operate effectively, ensuring optimal heating while keeping safety as a priority.

Understanding this limit is crucial for anyone involved in installing or maintaining heating systems, as it is part of the guidelines that promote safe and efficient management of heating applications.