| 摘要 |
The object of this invention is a heat transfer blower which consists of a casing-like body inside of which there is an electric fan and which is intended to be installed on a wall, preferably on the top part of the wall. The common aspect with all blowers which are known per se and which are in use is that their sound level is relatively high and thus disturbing. In continuous operation, these prior known blowers use relatively large amounts of energy. The prior art problems are solved by providing one or more fans (2) in the device, preferably three units, and they are magnetic motors or corresponding which operate at a low sound level. |
