A system for wireless heat detection is disclosed. The system includes one or more heat sensors that convert sensed heat energy into electrical power for transmitting an alarm signals. A remote system may trigger an alarm based on the received alarm signals. The heat sensors may be placed at discrete locations within an interior of a building to monitor a condition of the infrastructure of the building. The remote system can include a communications module for receiving the signal and transmitting an alarm signal to an associated fire panel. The fire panel may analyze the signal, as well as signals generated from adjacent sensors, to determine whether a fire condition exists within a building. Appropriate notification devices may then be activated based on the determination. Other embodiments are disclosed and claimed.