dimplex 28" multi-fire xhd firebox with acrylic ember media bed dimplex with a thin, black glass surround revealing flames that are vivid day or night, the multi-fire xhd invites you to get cozy by the fire. customize the flames and create the perfect atmosphere by adjusting the led lighting with the remote control or built-in touch controls. with safe and powerful ceramic heater warming up to 1,000 sq. ft., the multi-fire xhd is the ideal way to add comfort and ambiance to any room.