Are recessed ceiling mount horns permitted according to the NFPA regulations?

Recessed ceiling mount horns are permitted according to NFPA (National Fire Protection Association) regulations, specifically outlined in their standards for notification appliances used in fire alarm systems. The NFPA recognizes that recessed horns can be designed to provide effective sound coverage while maintaining aesthetics in a space.

These devices can be installed where the building code allows and they meet the specified hearing range for alarm signals. Proper installation ensures that the audible alarms are effective and comply with the necessary safety standards, taking into account factors such as ambient noise levels and architectural features.

While options suggesting restrictions on the use of recessed horns (such as limiting them to commercial buildings or fire-rated spaces) might stem from specific building codes or local amendments, NFPA allows for these devices in general as long as they are part of a compliant fire alarm system. Therefore, the affirmative response is justified under the context of the NFPA regulations.