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Why does the flame on my stove burners look blue, but the flame of a campfire is yellow?
Answer: A natural gas flame burns hotter than a campfire. In general, cooler flames appear yellow, orange, or red, while hotter flames look blue or white. (While flecks of orange in your gas flames are okay, if the flame is yellow, large, and flickering, the appliance may need a safety adjustment by a qualified repair person.)
How many miles of natural gas pipes are there in the U.S.?
Answer: The interstate pipeline system contains over one million miles of pipe—enough to stretch to the moon and back twice.
How fast does natural gas move through pipelines?
Answer: Natural gas travels through pipelines at the slow and steady pace of 15 miles per hour.