Installation: both in-wall recessed and hang-on-the-wall are available for you to choose from. A 120v, 15amp circuit would be needed. Two electrical connections: plug-in or hard-wiring. Multi flame combinations: the modern and realistic flame creates a life-like flame feel; two options for the fuel bed: log set or crystal stones. Multi-color flame and fuel bed in 5 brightness settings, crackling sounds, and adjustable flame speed to suit your mood cheerful or peaceful on different occasions. The flame and crackling effect can be used with or without heat. Heater: upper front heater blower (heat outlet at the middle top and air inlets beside the outlet). Two heat settings (high 1500w and low 750w) put out reasonable heat, but cannot be used as a main heat source. The thermostat and countdown timer are available for convenient and desired use. Modern home décor: The simple and elegant appearance design is perfect for the living room, entertainment center, office, or anywhere you would like. Touch screen buttons turned off after several seconds without any operation and an invisible main switch when used would perfect your feeling. Indoor use only