Need to cover fireplace opening

We just purchased a free-standing pellet stove, which is now placed on the back side of the brick wall of our fireplace. The new stove's pipe is installed in the chimney, and we can no longer use our fireplace. We have been left with a large opening to the defunct fireplace, and it needs to be closed off. We don't want to brick it up, as we will need to get into the opening from time to time to clean out the pellet stove pipe. Does anyone know of a website where we can find a metal plate to cover the opening? I've checked a number of fireplace sites, but there's nothing like what I need. Any advice would be appreciated.
Diane M
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Are you looking to improve the look of the empty unused fireplace, or are you looking to seal the fireplace off from the room to stop cold chimney draft? If you are looking just to improve the look of the chimney maybe just dress it up with a candelabra in the fireplace or speak with a decorator for ideas. If you are looking to seal the chimney and the corn burner pipe is hooked in above the damper why you could use something like a chimney balloon to seal the chimney off down low by the damper.
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