Why Switching to a High Effectiveness AC System is a Smart Choice

http://raymonddawy161.angelfire.com/index.blog/1608432/why-switching-to-a-high-effectiveness-ac-system-is-a-wise-option/

Three-quarters of all homes in North America have an air conditioning system. Ac systems use about 6% of all the electrical power produced in the United States, at a yearly expense of about $29 billion to property