Dimplex Frame Kit for Ignite Models Fits Ignite 50" helps to Incorporate the dazzling Linear Electric Fireplace into virtually any wall with the optional trim kit accessory kit. The minimalist trim design makes it possible to install fireplaces in a 2" x 4" wall. This makes it easy to install almost anywhere, using standard construction materials, and minimizes the fireplace footprint to make the most of the available square footage.