How do I determine the correct safety factor for my building’s heating load calculation?

The selection of a safety factor depends on various factors, including the building’s occupancy schedule, climate, and construction type. ASHRAE Standard 90.1 provides guidelines for safety factors, which range from 1.0 to 1.1, depending on the type of load and the level of uncertainty. For example, a safety factor of 1.1 may be used for room space peak loads, while a safety factor of 1.0 may be used for building loads. It’s essential to consult with local building codes and regulations to determine the appropriate safety factor for your specific project.