Gas Fireplaces are versatile, they can be installed nearly anywhere you wish. They are efficient and safe to use, providing heat and light in the event of a power failure. Gas Fireplaces include Direct Vent Units that vent combustion gasses directly outside, Vent Free Units that use the indoor air to fuel the combustion process and vent safely into the room, and units that replace existing masonry fireplace openings called Fireplace Inserts.