Which of the following is NOT a common life safety system that emergency power systems support?

Emergency power systems are designed to provide backup power to essential life safety systems during power outages, ensuring that critical safety measures remain operational in emergencies. Common life safety systems that these emergency power systems typically support include fire alarm systems, elevator systems, and emergency lighting systems.

Fire alarm systems need to remain functional to detect smoke or fire and alert occupants and emergency responders. Elevator systems, specifically those designed for fire service use, must also operate under emergency power to facilitate evacuation and to bring firefighters to the affected floors. Emergency lighting systems are crucial for illuminating exit pathways during blackouts, helping people evacuate safely.

While heating systems are important for maintaining comfort and safety in buildings, they are not considered a primary life safety system. In emergency situations, the immediate concern is life safety, which emphasizes systems that aid in evacuation and emergency response. Therefore, their support by emergency power systems is less common compared to the other systems listed.