Big Lots is recalling about 70,500 portable ceramic space heaters and oscillating space heaters. The recalled heaters can overheat and melt, posing a risk or fire or electric shock.

This recall affects two models of 1500 watt 'Climate Keeper' ceramic heaters sold at Big Lots stores nationwide from September 2010 through March 2012. Both models have a fan, two dials on top, a wire mesh panel in front and a label on the bottom with the model number and ETL 3130679.

Model #FH107A has grey plastic housing. Model #PTC-902T is an oscillating heater with silver-grey plastic housing, a molded handle on top of the heater and a small extra button between the two dials which controls the oscillation.

Consumers owning either of the recalled space heaters should stop using the product immediately and return it to any Big Lots store for a full refund.

For additional information, consumers can contact Big Lots toll-free at 866-244-5687.