My furnace shut down again. Assume it's water in the gas line again. See orange coloring in the blue flames. Two years ago when it was very cold and had the furnace, dryer and stove running it caused the water meter outside to freeze up. No gas at all then. Gas company purged water out of the outside underground lines. They put ugly insulation around the meter and has been fine. Oh yeah, I'm the last house way down a street on a downgrade. Probably the gas line ends at my house. Over the past two years the meter readers have been ripping open the insulation to read it. A couple days ago had the furnace, dryer and hot water tank going and then the furnace shut down (Carrier with computer control). I restarted it with no other appliances and it's working again. Questions: Is the orange coloring in the blue flames because of water again? Is this tainted gas? Am I being charged for inefficient gas? Our gas bill seems high for such a small house and an efficient furnace. Thanks!