There are a lot of different kinds of fireplaces out there.  We all know the old wood burning type, but the newer gas fireplaces are more convenient and cleaner burning.  

I have customers that are complaining about the cold air coming in from the gas fireplace.  I have done a lot of research for my business, with some confusing information about the construction of gas fireplaces.  There seems to be a trend of venting the gas fireplace, directly outside, behind the fireplace.  I have received pictures from customers, showing the opening to the outside, visible from inside.   I understand the need for venting gas fireplaces, but the opening to the outside is letting in a lot of cold air, as well as allowing the heat and air conditioning to escape up through this vent.  These open vents are also allowing bugs to enter the fireplace and eventually the living space.

Does anyone have information to explain why, in our "energy saving" trials, they can install a fireplaces and leave a "hole" in the home, that cannot be closed off?

I originally made fireplace covers for wood burning fireplaces, as I have had in the past.  The dampers get warped and/or broken and are very costly to repair, if it can be repaired.  I did not, at that time, know about the openings left on a gas fireplace.   

Any information is appreciated about this problem.

 

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