Used with care, propane is a safe and convenient fuel. Propane gas is neither toxic nor injurious to you, should you be exposed to it in small quantities. However, should a leak occur, the accumulation of propane gas can become dangerous.
Because propane is heavier than air, it tends to settle in the lowest available place. Very small amounts of propane are required to create a flammable mixture of gas and air. In the limited space of a recreation vehicle, for instance, very little propane is needed to create a hazardous situation.
Propane requires a large volume of air to burn properly. In fact, 23.5 cubic feet of air is needed to burn just one cubic foot of propane. With adequate ventilation, an operating burner gives off a number of harmless products such as carbon dioxide and water vapour however, a propane appliance starved of oxygen can quickly produce dangerous amounts of carbon monoxide.
For safety's sake, use your propane appliance only for the purpose for which it was designed. Don't, for example, use a stove as a space heater.
So yeah.. what this is telling you is the first thing they teach you when you work in a gas processing plant. You can't have a little bit of air in a pipeline mixed with ngl's. Because that is a time bomb waiting to happen. It's a confined place. So for goodness sake.... if you use a coleman heater, don't put in a confined space like a sealed barrel or something.
And your average house has between 3-5 thousand cubic feet of air.
Here in south central Texas we are experiencing 100 degree weather...I don't think we have to worry about heating with propane....
Propane Safety BUMP!!