There are two kinds of drafts vent drafts and flue drafts.
Cold draft from direct vent gas fireplace.
I am going to make the assumption that the builder put no.
Use our magnetic fireplace vent coversto stop the draft instantly.
We have a new direct vent gas fireplace installed flush to the wall in a new home.
Leaving the fireplace pilot light on in the winter will help.
Our magnetic fireplace vent covers stop drafts from vents circulating cold air.
Another great solution for preventing these drafts is to install a direct vent gas insert.
A direct vent gas inserts is flued up the chimney but because it is a sealed firebox the cold air cannot escape back into the room.
Also you may discover that the knockout for the gas line is letting cold air come in.
This unit is five years old and installed when home was built.
A direct vent gas insert will stop those pesky drafts because the insert fits snugly inside the fireplace opening and the insert itself is a sealed firebox.
Stuffing the hole s with batt insulation will slow the draft down.
Even with no cold air penetration from the outside there.
Warm air enters the top of the firebox gets chilled by the coldness.
Our flue zee flue covers and our termination cap covers deal with the draft of outside air coming in through your flue.
I am getting a cold draft from the bottom vent top of unit where fireplace meets mantle and even surrounding area where floor meets mantle.
Draft decor products compliment each other and are versatile too.
The dog house is vinyl siding and there is an 8 inch vent out the back of it.
Are natural reverse convection drafts occurring.
If the wall behind the fireplace is uninsulated which is common the problem will be worse.