A blower-door test. Calculating home energy Heating and Cooling
When trying to lower your energy use, a good place to start is
getting a picture of the many ways you use energy now. HOW MUCH
ENERGY DO I USE? An average American uses more than four times
as much energy per year than the global average, 308 million
British thermal units (Btu) annually, compared to 73 million Btu
per person per year globally,according to recent U.S. government
estimates. That guess doesn’t account for foreigners’ use of
gathered fuels like wood or manure. However, it also doesn’t
include the foreign energy used to source, assemble, and ship an
endless profusion of products to the United States from other
countries, like China. The most straightforward uses that you
can measure and control are probably in the home and through
transportation. Every year, the average car in the United States
is driven 12,300 miles and consumes about 67.8 million Btu worth
of fuel. On average, Americans use more energy in homes than for
transport. T