Keep the beautiful look of your woodburning fireplace with the added cleanliness, energy efficiency and convenience of gas with the ADI-ZC-FB-S FireBrick Gas Insert. The incredible insulating characteristics of FireBrick traps the heat in the firebox, allowing it to better radiate into your home. Also, FireBrick holds heat well after the fireplace is turned off, resulting in greater overall efficiency. The slant back design and molded blower chamber allows the insert to slide directly into most existing 36″ zero clearance fireplaces without cutting away base pans. The direct vent, sealed combustion chamber uses 29,600 Btu/input; 80% AFUE rating. The enhanced viewing area shows off the six hand-painted ceramic fiber logs and the most realistic burn on the market. Finish your installation with available designer options and you’ve got a beautiful focal point for any room. Safety tested and listed to UL307B standards and covered by Heatilator’s Limited Lifetime Warranty.