" Interesting report. Both explosions described were from large amounts of antifreeze and water being sprayed from above by an automatic sprinkler system onto an open flame. The mist ignites instantly causing a massive explosion. In the first example it said the system contained 262 gallons of glycerine, and in the second, a large amount of p-glycol.
Trukee, in the winter had about 0% humidity. Interesting.
The lightbulb theory may not be as strongly held to as earlier stories suggest ~ but, of course, they'll have been reading the FR threads (since their data mining software continues to throw them up as newer comments come in).
Let's say she had the garage door open, and had been sitting there warming her car for a few minutes. Then, she backs out, cuts sharp right to wiggle around another car in the drive, and whacks the workbench which breaks up in some way and her radiator gets punched.
That heating coil around the catalytic converter has got to be toked up to working temperature of 1300 degrees F ~ so, the spray goes all over the place, but particularly UNDER THE CAR, and BANG ~ a ball of flame envelopes the car, and some spray has entered through the door vents so that goes off too, and her car comes to a halt as the engine dies.
In the meantime the garage catches fire (lots of old drystuff there).