Owner: Furnace may be behind deadly Indiana blast

[jtuck004]

31. Propane is heavier, would tend to settle, a little different. And even in modern homes

recessed lights, etc should provide a path for natural gas to get out, but obviously that's tricky. Sometimes furnace closets are closed off but somewhat vented, although with the new ones that only have a pvc line out for condensation that may well be different.

You are right, though, the more modern the less leaky.

But it not only took out this house, but most of next door, and at last report tore up 30 other houses so badly they are uninhabitable.

That's still a hell of an energy release it seems, even for natural gas, but possible if you could get enough of it contained and ignite it, I think.

Gonna be interested to see the results of their investigation.