 Plus, for the traditional customer, Heat & Glow has single-sided units also. If you really want to make a statement, Ganya Clay Products suggests the Twilight and Fortress indoor-outdoor gas C2 fireplaces with non-reflective glass. Imagine, you feel like you're outdoors even while you're sitting in your living room. As you can see, Heat & Glow and Ganya Clay Products has it all.