United Pet Group (Marineland) has issued a voluntary recall of approximately 1.2 million Marineland aquarium heaters due to fire and laceration hazards.
UPG states in their document that a wiring problem can cause the heaters to overheat or break during normal use. Overheating could cause the heater to catch fire or shatter or cause the aquarium glass to break.
More on this can be found here…. http://www.marineland.com/update.aspx