Mr. Flame Fireplace Radiator - Right-side fan Variable-speed motor delivers 50-125 cu. ft. of heated air per minute Three average-sized logs can burn up to 6 hours (with glass doors closed) Fire is built right on the Fireplace Radiator, so theres no need for a grate Easy to install and adjustable to fit almost any fireplace, including fireplaces with wire mesh screen or glass doors