â-� Realistic 3D flame effect with 3-level brightness for visual warmthâ-� Use the fireplace with heat and flame or only flame for year-round decorationâ-� The remote control of the fireplace can be used within 20 ftâ-� It has a 4777 BTU heat output perfect for warming up to 400 square feetâ-� The thermostat can be set between 62℉ and 82℉ for comfortable heatingâ-� The 0.5-6H time setting of the fireplace for energy-savingâ-� Overheat protection heating lock and CSA certification for safetyâ