rumor has it that Jim wrote: > > Propane makes me nervous. If the heater core thingy leaks inside > > the car, won't the propane be heavy enough that it may settle near > > the floor. Then a spark might ignite it? > > You could easily engineer a scenario where the car blew up, but I > don't think it could really happen by itself. The odds are against > it. Propane is hard to ignite when compared to gasoline, anybody > that has experience with an aging gas grille is familiar with it. > The propane has a narrow range of flammability in air. Too little, > or too much, and it won't ignite. And you can smell it long before > it reaches flammable concentration. There are much higher > automotive risks. There are countries that use this stuff in > refrigeration, both stationary and mobile.
Also, if there is a rapid leak, even R12 can be "flamable" because of the oil it's carrying. -- Philip, thinkin' it's about time to repair the block heaters.
