I'm betting on no. I know that to replace our gas fireplace with a real woodburner would require major construction. There may even be HOA rules against it. Now a pellet stove may be a whole 'nother thing.

Our gas fireplace was doing poorly, even quit working. I just hired a guy to service it and it works perfectly again! Cheapest way out by far, and it'll put out some heat. Yours is probably fixable for a reasonable cost, might check that out first.