Pellet Insert and cabinetry November 5, 2018 by Karen Leave a Comment Our installation of this QuadraFire Mt. Vernon pellet insert totally transformed the room! After removing the original pellet insert from this 2-sided corner fireplace, we completely redesigned the look of the fireplace. Above: the finished fireplace. Lower images: original pellet insert, design sketch, and a photo of the work-in-progress.