B-Vent Fireplaces take air from the room for combustion and exhaust all pollutants out above the roof via a chimney or wall vent. B-Vent (or Natural Vent) Gas Fireplaces tend to be more decorative and less efficient (give off less heat) than their direct vent counterparts. If you live in a warmer climate and are looking for the aesthetic qualities of a fireplace without the heat, a B-Vent Fireplace may be perfect for you. We offer many different variations of the B Vent Fireplace, including traditional One-Sided, Left Side Open, Right Side Open, See-Thru, and Peninsula. Contact a knowledgeable FireplacesNow.com team member to discuss possibilities today!