Understanding Fire Through the Candle Experiments Credit Hours: 4 Approximate reading time: 1.5 Hours Approximate online time: 1.5 Hours You Must Be Signed In To View This Program. Register Today NFPA Documents Disclaimer- NFPA and other resource editions cited within the CFITrainer.Net site were current as of the release of the respective modules. The field of fire investigation and its guiding documents are constantly evolving and it is incumbent upon the fire investigator to remain up to date with the guidance in the current editions of the documents referenced in all modules on CFITrainer.Net, regardless of which edition was used in the writing of the module. Program Abstract The Understanding Fire Through the Candle Experiments module was derived from Faraday’s book, "The Chemical History of a Candle." By performing flame experiments using a candle, analyzing the physical phenomenon observed, and demonstrating how mathematical equations explain and predict the observed physical phenomenon, you will understand basic techniques for predicting fire.