Have a direct vent gas fireplace (Heat&Glo SL-750-TR-D) installed in a room we are not often in, on an external wall. We don't run the gas fireplace there due to odor issues that were never resolved.

I noticed tonight while moving some stuff around in there without shoes on that it was super cold and drafty immediately in front of the fireplace. Grabbed my infrared thermometer gun and despite being mid-60ish degrees a few feet away, the carpet and tile immediately in front of the fireplace is in the 40s and it's in the 30s inside the base of the unit - the same temp as it is outside. That seems pretty crazy to have that bad of a draft.

I poked around with a flashlight and dug through the dusty manual, but can't find anything about a flue or anything like that. Is there some way to close the vents on this thing? If so, is that a bad idea?

I could look into getting some of those big black magnet strips that you can put over the vents, but if there was something obvious I'm missing, I'd prefer to do that first.