The Bari incorporates HearthStone’s TruHybrid™ combustion technology to bring a modern European EPA certified product to the North American market. Unique Finishes. The Bari is offered with a variety of finishes including ceramic panels with various textures and colors, and of course, minimal black steel. Hase stoves are built with 2 layers. The inner steel body of the stove provides structure controls the combustion of the stove. The outer panels finish the stove and create a convective air channel that circulates warm air through your home and reduces the outer temperature of the stove.