Fireplace Draft Fix

With no way to close off the holes at the bottom of the fireplace door, in order to keep out a steady flow of winter air, I pondered several ways before figuring out that a magnet would naturally stick to the metal frame, avoiding the use of glue or tape, and getting a good seal.  I bought a package of flexible magnetic sheets from Staples, the kind you would use to print custom refrigerator magnets, cut one sheet horizontally into three pieces to the needed height and put them in place with the white side facing away and the black side facing towards the living room, as shown below.  Problem solved at a minimal cost.

https://www.staples.com/Staples-Inkjet-Magnetic-Sheets-8-1-2-x-11-4-Sheets-34747-CC/product_386943