The Superior VRT3500 Ventless Firebox has a 28" height opening that allows for a large viewing area. This, together with its classic appearance, ensures that it will look great in your home. It also produces soothing, pleasant heat and is available in 36" and 42" radiant, smooth-faced options. You'll be able to enjoy a fireplace that can accommodate up to 30" ventless gas log sets if you add this firebox to your home. The flames will be able to dance around the logs with a background of stacked white refractory panels after a burner and log set are fitted. The Superior VRT3500 Ventless Firebox is ideal for those looking for a basic yet stylish firebox option.