Gas Fireplace Fireboxes

This Duluth Forge full size 400 series vent free zero clearance fireplace insert allows you to build a custom fireplace

Pleasant Hearth 32-in vent-free circulating firebox insert features a wide opening with vents that allow for circulation with an optional

Pleasant Hearth 36-in vent-free firebox insert features a wide opening with a flush face that allows unit to be finished

Safety Assured ANSI Certified System Arched style gas fireplace insert Single precision ported ventless gas burner CA Residents: Prop 65