THE NEW LONDON SCHOOLHOUSE EXPLOSION
Propane doesn’t smell. It’s odorless in its natural state. But if there is a leak, you smell a nasty odor.
Ever wonder why? It wasn’t always that way. What caused the changed?
It would have been fortuitous if this had been done from the start as more and more buildings began to use propane and gas for heating. But no one thought of doing it until they realized they had to.