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.
In the winter of 2006-07, some 6.5 million homes used it for primary heat; this winter, that number is down to 5.6 million, according to EIA estimates. The cost varies a lot by region. In the Midwest, heating a home with propane costs an average of only $1,534.In Maine, propane is replacing oil because it's cheaper to use.n the winter of 2006-07, some 6.5 million homes used it for primary heat; this winter, that number is down to 5.6 million, according to EIA estimates. The cost varies a lot by region. In the Midwest, heating a home with propane costs an average of only $1,534.