Hollow roof tile for heating water; has inlet openings on top at front and outlet openings on bottom at rear for connection to adjacent tiles and has meander-shaped hollow space inside

摘要

The tile has one or more inlet openings (2) on its front side in the upper part of the tile and one or more outlet openings (3) on its rear side in the lower part of the table. The openings correspond to openings on adjacent roof tiles. Preferably, the tile is formed in one piece. Short separating walls (4) are preferably arranged alternately from the right-hand and left-hand sides, to form a meandering hollow space inside the tile.