| 摘要 |
<p>The appliance is for the recovery of heat from flue gases in chimneys, hot air in ventilation systems etc. It has a tubular or similar heat exchanger (3') with a flowing exchanger medium, located in the chimney or the ventilation channel. The gases are forced or sucked through the heat exchanger and the chimney or channel by a blower, which is part of an oil or gas blower burner (1a). The heat exchanger may be connected to a flow medium or heat exchanger circuit, which forms part of a heating circuit (12,12',10), and is pref. located in the return (12,12').</p> |
