The heaters are six-and-a-half inches tall, made of black plastic, with a Lifepro logo molded into the front bottom. The recalled model numbers are LS-IQH-DMICRO and LS-IQH-MICRO. The model name and wattage are printed on a label on the back of each heater below a three-prong plug. They were sold throughout 2014 for $40-$50 in stores nationwide and at major online retailers such as Amazon.com and Walmart.com. Consumers should unplug and stop using the heaters and contact Lifesmart for a free repair kit, a free replacement heater, or a full refund.