Yes, it can but if it’s a working gas fire with a single course of bricks then it’s not advisable. Under normal conditions, if the fireplace is electric and has a mantlepiece to deflect the heat should be fine … Real Coal and wood fires are much hotter and could be problematic. Our advice is that you check the chimney breast where the screen will be mounted; it should be no hotter than 80 degrees Fahrenheit. Or book an engineer and we will take a look free of charge.