Electric Fairplace with CSA/UL certification ensures long time services and user's safetycan be sold in the U.S. and Canadian markets Double safety protection device, one is overheat protection device, automatically cut off when thetemperature is too high, the other one is fuse 1500W heat/ 5000 BTU's per hour provides supplemental heat up to 400 Sq. ft.11 temperature settings ,64F to 82F. 2 installation methods:Built in wall with surround trims & Insert to mantel from the front directly. 4 flame color and ember bed brightness can be adjust with 5 levels,flame speed can be adjust with 3 levels,can enjoy the 3D flame with or without heat. Timing function can set the time from 1 to 9 hours,don't worry about forgetting switching off this room heater or fire risk. Two power supply connection methods Realistic 3D LED flame effect with realistic crackling sound,that's just what a wood burning fireplace looks like