On 11/12/2014 10:41 AM, Stormin Mormon wrote:
Some campers and RV have a LP detector near the
floor. But NG detector in a home? Not heard of
such.

Excellent point!

Given that propane is heavier than air, having a *small* propane leak in a house with a basement or below grade crawl space is an explosion waiting to happen.
A *small* propane leak is probably less dangerous in an above grade slab house.

Given that natural gas is lighter than air, a *small* natural gas leak seems far less dangerous.