I have a gas fireplace that was installed when we built our new home 2 years ago. I know that pellet stoves do not require a major chimmey and can usually be just vented through the wall. Can I use my existing chimmey (designed for gas) with a pellet stove insert. Or maybe if I put a pellet stove upstairs could I just run the vent into the gas fireplace chimmey upstairs? Or vent it into my gas furnace chimmey?
Thanks for any advice you can offer.

I have a gas fireplace that was installed when we built our new home 2 years ago. I know that pellet stoves do not require a major chimmey and can usually be just vented thru the wall. Can I use my existing chimmey (designed for gas) with a pellet stove insert. Or maybe if I put a pellet stove upstairs could I just run the vent into the gas fireplace chimmey upstairs? Or vent it into my gas furnace chimmey?
Thanks for any advice you can offer.
Pellet stoves are readily available as conversion kits (inserts) for existing fireplaces and it is best to check with a supplier nearby your residence for availability before tearing into it. I was told that it is possible for a handy person to do the job. As I recall, the catch was inserting a flue inside the chimney, as the most difficult part of the task.