The center of a hose outlet in a hose house must be located not less than what height above final grade?

The correct height for the center of a hose outlet in a hose house to be located above final grade is 18 inches. This specification is important because it ensures that the outlet is accessible for firefighters and can be quickly and easily utilized during emergencies. Positioning the hose outlet at this height helps to prevent obstructive debris or standing water that could hinder access or operation during critical situations.

Additionally, the 18-inch height provides a practical balance between ease of reach for users and ensuring that the outlet is elevated enough to avoid potential contamination from ground-level sources. It's a standard that supports both safety and functionality in fire service operations, aligning with the intent of NFPA 24 standards for efficient fire suppression strategies.