The Isokern Vent Free 42" Gas Fireplace offers a larger viewing area while maintaining the clean, flue-free convenience of vent-free operation. Perfect for living rooms, dens, and gathering spaces. Spacious 42" firebox opening with realistic flame presentation Vent-free design, no chimney required Compatible with propane or natural gas log sets Lightweight pumice construction for durability and heat reflection Indoor approved with high efficiency rating Vent-free gas log set (required) Decorative refractory brick liner kits