| 摘要 |
<p>The device has a front cover element (3) for accommodation a burner e.g. gas- or oil burner, and a rear cover element (4) utilized as a closure for a cylindrical furnace chamber (1). An exhaust gas collection chamber (5) is provided radially outer side of a helical-coiled heat exchanger below a surrounded casing (6), and is provided with a connecting piece (7) for an exhaust pipe. The heat exchanger is divided into two flow channels (11, 12) within an opening for passage of heating gas of a restricting profile (9), where the furnace chamber is limited by the heat exchanger.</p> |
