2-Sided Gas Fireplaces

About

Double sided gas fireplaces are open on two opposite faces, so a single firebox finishes two rooms and the fire is visible from both. Manufacturers also call them see-through or pass-through. They are the reason a wall between a living room and a dining room can stop being a wall and start being a feature. Two-sided is not the same as three-sided The distinction matters because the installations are completely different. A double sided unit is open on two opposite faces and lives inside a wall, seen from the rooms on either side. A three-sided or bay unit is open on the front plus both ends and sits at the end of a wall or a peninsula, seen from one room. If the fireplace has to serve two separate rooms, you need a double sided model, and no amount of clever placement makes a three-sided one do that job. Glass, mesh, or nothing: what you are actually looking through This is the difference people do not expect, and it follows directly from how the fireplace burns. Direct vent models have glass on both faces, and it is structural rather than decorative. A direct vent fireplace is a sealed appliance that draws combustion air from outside and exhausts outside, and the glass is what keeps the two systems apart. It cannot be removed. Vent-free models are open-fronted, with a mesh safety barrier. A vent-free fireplace draws its combustion air from the room, so it cannot be sealed behind glass and still work. What you get instead is a mesh barrier across the opening, which is a required safety part rather than an accessory. Several models let you retract it into hidden pockets for an unobstructed view. See-through log sets have no enclosure at all. They are burners and logs designed to drop into a masonry see-through fireplace you already have, so the opening stays exactly as it is. If the word glass appears on a vent-free product page, read it carefully. It usually means a decorative glass liner on the interior back wall, or glass media covering the burner, neither of whic