Are direct vent fireplaces more efficient than traditional ones?

Direct vent gas fireplaces are more energy-efficient than traditional vented fireplaces. The traditional vent causes the loss of much of the heat, whether it comes from wood or gas, by drawing room air through the chimney with the exhaust. Direct vent fireplaces draw combustible air from outside the home.

Direct vent fireplaces have a combustion chamber that seals the fire away from the space it heats while allowing home occupants to see the fire. They convert most of the fuel into heat, with minimal loss. These units are versatile and improve safety because they do not consume the oxygen from inside the home.