Harman air in, vent out

[HarmanNewbie]

Please excuse me if this is the wrong place, but this is my first forum. I am installing a, new to me, Harman Accetra into a fireplace with existing chimney. I am installing a
3” OAK up the chimney, along with the 4” vent pipe. I would like to know what some of you are doing about having the intake and exhaust out the chimney. DYI, Duravant, Etc, etc… any ideas would be appreciated.

 

[Tim_M]

In my case my Accentra insert is connected to a 6” SS liner. I don’t have an OAK, but I have a clean-out at the back of the brick firebox, behind the stove. I replaced the removable plate that gave access to the clean-out on the outside of the chimney, with a plastic grill. This allows fresh air to enter at the rear of the stove. I know it’s not what a lot of others would recommend but it seems to work well for my set up.

 

[Paulinator]

You should be fine with that setup.