The ALMEVA stoves Hearth offer you a unique solution in conjunction with the ALMEVA Quadra TW25 flue system. This connection allows us to feed combustion air through the chimney body directly into the stove firebox. Thanks to this unique system, the stove is suitable for passive and low-energy houses with recuperation installed, or for renovations where it is not necessary to intervene in the structure of the building and to build a complex pipeline for the supply of combustion air. Stove types Scintilla glass, Scintilla steel, Focco and Cubus are factory-prepared for concentric connection.