• 36" see-thru unit approved for indoor-to-outdoor or indoor-to-indoor installs
• Vent-free 38,000 BTU (NG/LP) IntelliFire™ ignition with battery backup
• Weather-sealed stainless exterior on outdoor side
• Interior porcelain panels amplify flame reflection
• Includes transparent glass wind guard & drain pan

Blend indoor comfort with outdoor ambience using the Fortress 36. This unique see-thru fireplace delivers 38 K BTUs of vent-free heat on both sides, letting you enjoy one continuous flame from the living room to the patio (or between two rooms). IntelliFire ignition ensures reliable starts—even during power outages—while stainless hardware and a built-in drain keep the outdoor face pristine through the seasons.