Originally Posted by kdschreck
Woud you say the same for natural gas?
Not necessarily. Natural gas has an added odor which is unmistakable, so you'll know if it's leaking. Propane, while it does have a distinctive odor, most people don't recognize it. Also, the odor of propane doesn't tend to propogate into the air like that of natural gas. So if the leaked propane settles to the floor (as it does), you might not smell it when standing up.
Both are highly explosive when mixed with oxygen. But with natural gas, you're far more likely to know when it's leaking.