Contura Ci4 is available in three versions. Modern for own recessing, Classic and Modern for installing in Builders Openings. The insert consists of a convection box and a firebox. The convection box is easy to install, adjust and connect to the chimney, either straight up or at a 45˚ angle diagonally backwards. It is also possible to connect outdoor air for combustion. The firebox is docked inside the box and can be lifted out without affecting the chimney installation. Contura i4 is approved for use in Smokeless stoves.