Aluminum is the most abundant metallic element in the Earth's crust. Bauxite ore is the main source of aluminum. Aluminum is used in automobiles and airplanes (36%), bottling and canning industries (25%), building and electrical (14%) and in other applications (25%).
A: The average propane consumption per year for whole-house heating is estimated to be between 1200 and 1500 gallons per year for a 2,200 square foot home. However, the amount of propane a household uses varies depending on its specific uses in the household.
According to the US EIA, the average national current propane price is $2.76 per gallon (23 December 2013). Since the beginning of the 2013-2014 winter season, they have increased almost 17%. Furthermore, this does not compare well compared to last yearsâ propane price per gallon of $2.24 for the same period.