The Venmar Company has issued a public notice to warn the public of the possible fire hazards caused by some of their Air exchange systems. The notice targets all brand manufactured between 1991 and 2001 and between October 2006 and August 2007. Health Canada has published a detailed list of all recall products : cpsr-rspc.hc-sc.gc.ca.

If you own a Venmar Air Exchange Systems listed in the recalls:

Turn off and disconnect it immediately