Built -in. This category of fireplaces is usually built into wall columns or niches. The disadvantage of such fireplaces is that their installation must be carried out at the stage of building a house, when erecting walls. If you make installation in the already built room, then you will need to cut part of the wall for the fuel and chimney or make a niche in it, which will significantly affect the cost of the installation as a whole. The input of the furnace chamber is usually framed for built -in fireplaces, which protrudes from the surface of the wall as a rule by half of the brick.