This fan has performed well in my 2,700 square foot home as a horizontally mounted attic exhaust fan. He has been working about 10 hours every night for the past 3 months. I am aware that my installation is not "coded" - neither electrically (see the switch on the side of the device in the picture) nor according to the manufacturer's specifications (must be installed vertically). I've watched its chassis heat up (probably indirectly indicating a change in friction and/or efficiency) and there hasn't been a difference since installation. In addition, the noise of the fan remained constant (only my ears can measure that :)) The installation is seasonal, because in winter I replace the fan/door with an insulated door. In general, the installation and installation was very easy. There are other details like airflow that need to be considered when using a fan properly, but if we talk specifically about this fan, it has worked well in my use case so far! hours, 90 days a year). It moves air and cools my 2,700 square foot home well. I expect blinds installed horizontally will probably reduce the rating somewhat, but they do their job of keeping dust (insulation) and possibly heat back in the house when the fan isn't running.
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