There shouldn't be any cracks in your chimney that would catch a brush. A crack has the opportunity to unfold flames to other constructions of your own home. See-By means of or Double-Sided Fireplace: This newer model of wood-burning fireplace provides a glass enclosure on either side of a fireplace https://electric-fireplace16825.blog2freedom.com/28091072/5-essential-elements-for-floating-fireplace