As of 2015, the best infrared heaters are the Dr Infrared DR968, Duraflame Livingston and iLIVING. Amazon.com gives the heaters 4.1, 4.2 and 4 out of 5 stars respectively, and BestReviewsAdvisor.com gives them favorable ratings as well.
Ideal for heating spaces up to 1,000 square feet, the DR968 is safe and powerful and features an advanced dual-heating system designed to last up to 80,000 hours. With a lifetime of up to 20,000 hours, the Duraflame Livingston utilizes six infrared quartz heating elements to evenly distribute heat across 1,000 square feet. The iLIVING heater generates twice as much heat as other models and includes newly engineered blower technology that reduces noise. It also features a lifetime filter and casters for portability.