American Council for an Energy-Efficient Economy (ACEEE), June 25, 2014, by Joanna Mauer.
http://aceee.org/blog/2014/06/taming-energy-hog-efficiency-standard%20

"The Department of Energy (DOE) issued new efficiency standards today that will dramatically reduce the energy use of a little-known home energy hog. Furnace fans, which circulate heated and cooled air throughout a home, consume more than twice the electricity in a year as a typical new refrigerator. The new standards will cut the cost to power furnace fans by about 40% and also deliver improved comfort."