Based on regulation changes implemented by Natural Resources Canada (NRCan), indoor gas-furnaces manufactured after December 31, 2009 will have to meet a minimum performance level of 90% Annual Fuel Utilization Efficiency (AFUE).  This is applicable to any residential gas furnace for sale or lease in Canada with an input rate not exceeding 225,000 Btu/h, excluding furnaces for use in a mobile home or a recreational vehicle.

The regulations also contain a reporting requirement for electricity consumption of the furnace fan, blower motor, and standby power.

For further information about these regulation changes, please visit NRCan’s website.