See-ThroughAdd the warmth and beauty of a prefabricated masonry fireplace to two rooms simultaneously with the FireRock See-Through Fireplace. This See-Through model can provide the ambiance of a masonry fireplace into an outdoor and indoor living area within any exterior or interior wall. This model saves you vital space when planning your next home project with the use of only one flue for both fireplaces.See-Through Vent FreeThe See-Through Vent Free fireplace is an easy way to add the warmth and beauty of a prefabricated masonry fireplace to two rooms simultaneously, with less hassle. Like our standard Vent Free fireplace, this gas burning fireplace does not require any chimney or ventilation, meaning it weighs less than the comparable See-Through fireplace, while still providing a true masonry look.