Fire detectors are important in reducing the violence and prevent further damage to life and property, which exists in several ways. This study aimed to determine the effectiveness of smoke detectors, Volume of carbon dioxide, Duration of burning fuel and change photos within the fuel ignited combustion. Fuel use in the experiment 5 types include synthetic fabrics, paper, rubber wood, synthetic rubber, polyvinyl chloride. Testing room created based on standard equipment, smoke detectors, the Department of public works and urban planning. Combustion period found that type of fuel burning paper period was minimal.