| 摘要 |
<p>A heat recovering device for gas operated ranges of the type used at homes, restaurants and hotels comprises a tubular duct (10) encompassing, in a continuous way, all of the flames (2, 3, 4 and 5) of the range, the tubular duct being supported by supporting means (15, 16, 20) and coupled, at the two ends thereof, (10a, 10b), respectively to a duct for supplying the liquid to be heated and to a duct for removing the heated liquid.</p> |
