Perfect heater in our sunroom, puts out enough heat.  Will be put to the test during Chicagoland winter (it’s not a 4 season room) however had no trouble over warming the room, where it had to be turned down or off this fall.  The color changes with or without heat is a great feature that some fireplace models don’t have. The crystals really add to the ember glowing effect. Would have been 5 stars except there’s a white mark (from heating element ) that shows through the black background during the day when on, can’t see it at night…it’s ok for us but would bother me if located elsewhere