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.
Multiply total gallons by 95,475 to figure total BTUs of usage. To figure the total propane for your home, multiply total gallons of propane for the year by 95,475. The result is the total BTUs your family consumes in a year. Example: 800 gallons * 95,475 = 76,380,000 BTUs.ccording to Home Energy: Advancing Home Performance, 39.4 percent of homes using propane heating use between 5 and 10 British Thermal Units (BTU) per square foot. Only 12.2 percent use under 5 BTUs per square foot.