Thanks so much for that info. I will ensure I have both types of extinguishers with me when I run my tests. As for how I obtained the turbine, I was allowed to used it for a project at my school. They had two of these (one already set up by another student for a project that isn't functioning, and the one I have which is brand new in the box). This brings up a question I probably should've asked: Is there any specific procedure for running the engine for the very first time, or is it the same as described in the "startup" section of the manual?