Just found this online from the NEWS.What's Online Next Issue: Nov. 16, 2009

Canada Mandates Condensing Furnaces
The day Jan. 1, 2010 will bring many changes to the HVAC industry. As of that date, R-22 will no longer be available in new cooling systems manufactured in the United States or Canada, and our neighbors to the north will have a new national minimum energy performance standard for gas furnaces. After the New Year, gas furnaces manufactured for most Canadian residential applications must have a minimum fuel efficiency level of 90 percent AFUE. This is a significant jump from the current Canadian minimum standard of 78 percent AFUE for gas furnaces, but the new regulation was not a surprise, as the government has discussed raising minimum furnace efficiency standards for more than 10 years.