This ClassicFlame Builders Box Electric Fireplace can be hardwired into a homes electrical system and used with an external thermostat which is included. This Builders Box features an integrated junction box for hardwiring installation, includes extra large mounting hardware, has a zero-clearance design that allows flush mounting to drywall, tile or other home finishes, total surround flange for installation before or after drywalling, and installs into above or below grade room, interior and exterior walls or corners.