One of the questions ask was "What happens if you get the proper mix of Propane and air and there is a spark".. I chimed in (Since it was a review session) "You land two counties over".. After the laughter died, the instructor gave me some pleasure by saying "Exactly" then giving the proper answer "An explosion".
Exactly. At one of our state mandatory 8 hour LP safety training, the instructor asked what you do if you enter a dwelling saturated with LP/Natural gas. The correct answer is to leave and call the fire dept. Trying to open windows and open doors will allow the NON Combustable over saturated LP in the house to get to the correct combustable LP/Air mixture and the slightest spark from ANYTHING (ceiling fan motor/AC fan motor, even a wall switch) will ignite the LP and indeed blow up the house. Same holds true for an RV if completely saturated. 100% LP in a closed area will NOT ignite. Getting it to a safe level is a job for the Fire Dept. Doug