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.
With three to five fill-ups per six-month season, total winter costs could be $2,000-$5,500. Propane is a byproduct of oil and gas production, and in the past propane prices rose and fell in tandem with the cost of crude oil.