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New York • Dyson is recalling about 393,000 portable electric heaters because they can develop an electric short and overheat, posing a fire hazard.

The company is aware of 82 incidents of the recalled heaters short-circuiting and overheating, including four reports of heaters with burned or melted internal parts. No injuries or property damage have been reported.

Approximately 338,000 heaters were recalled in the U.S. and about 55,000 in Canada.

The recall includes all Dyson Hot heaters and Dyson Hot+Cool heaters with model number AM04 and all Dyson Hot+Cool heaters with model number AM05. The model number is found above the Dyson logo on the product information sticker on the underside of the heater's base.

The heaters are 23 inches tall with a round base and an upper body shaped like an elongated ring. They have no external fan blades and are made of plastic. The heaters were available in the colors silver, black and silver, blue and gray, gray and silver, pink and gray, purple and gray, and white and gray. Each heater came with a remote control.

The heaters were sold from September 2011 to March 2014 for about $399. They were sold at Bed Bath & Beyond, Best Buy, Costco, Fry's, Kohl's, Lowe's, Macy's, Sears, Target and other retailers nationwide. The heaters were sold online at websites for Abt, Amazon, Dyson, Groupon, HSN, QVC and Walmart.

Consumers should immediately stop using the heaters and unplug them. Dyson Inc. can be contacted for a free repair.

The company can be reached toll-free at (866) 297-5303, 8 a.m. to 8 p.m. Central Time Monday through Friday and 9 a.m. to 6 p.m. Saturday and Sunday. Dyson may also be reached online at http://www.dysonrecall.com , where consumers can register their heaters to get them fixed free of charge.