| 摘要 |
<p>The present invention relates to a gas fed water-heater comprising a double wall container (1) inside which a burner (2) and a tank (3) of the water to be heated are arranged. At least in the portion (5aCOE) adjacent to said burner (2) of the interspace (5) between the two walls of said container (1) is placed a thermoinsulating system comprising an inner layer (6) of glass wool or rock wool and an outer layer (7) formed of at least a vacuum panel, which comprises an envelope which encloses inert material powder with an average size of the particles lower than 100 nanometers.</p> |
