What is the difference between Direct Vent and B-Vent gas fireplaces?
The main difference between a direct vent fireplace and a b-vent fireplace is that the direct vent firebox has the option of top and rear venting whereas the B-vent can only vent upwards. This aspect becomes necessary when one needs to put a fireplace in a room or area where there’s no access to a roof, or one needs to vent through a wall that divides the outside from the inside of the house. Another advantage and difference a direct vent has from a b-vent is that their flues are much smaller than average chimneys, thus they release less heat and therefore keep more warmth in the house.
