This EPA-rate insert features a large viewing area window which gives people facing the fireplace a great view of the action and it has two quiet blowers which help to circulate heat around the room. STEEL WOOD FIREPLACE INSERTS. The Npi45 Pellet Stove Insert Napoleon Fireplaces Pellet Fireplace Wood Stove Fireplace Pellet Stove Inserts And a fireplace insert will make your fireplace work amazingly well turning it into a heating machine. Awesome Wood Stove Fireplace Insert . An insert may only be installed if you had an existing fully-functional wood fireplace and chimney. For over 40 years Fireplace Xtrordinair has been heating homes across North America with impeccably crafted wood and gas fireplaces and fireplace inserts. These inserts are built to exceed standards for clean-burning. Self-contained and more efficient than an existing wood-burning fireplace opening a Wood-Burning Insert is a great way to ensure that your home is running more productively. Fireplaces and ...