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Hosts Bryan McLane and Charles Aulner are joined by Ed Heyden. The three discuss critical aspects of fire alarm systems, including focusing on the importance of using the correct code additions for NICET exams, the necessity of primary power for fire alarm systems (NFPA 72 – 10.6.5), and addressing common field questions regarding heat detector spacing. The conversation emphasizes the distinction between real-world practices and code requirements, the significance of documentation, and the challenges faced by students preparing for the NICET exams.