1
vote
1answer
112 views

Does the amount of air noise generated by a portable fan depend on blade design?

Forgetting about motor noise, are all household fans such as window fans and table top fans equally noisey? Is there a type of blade or grating that is quieter than others for the same amount of ...
2
votes
1answer
2k views

What type of motor do I need for my attic fan?

My attic fan motor appears to be on the fritz (makes a buzzing sound and the fan tries to turn but won't make it more than 1-2 revolutions without sticking). I'm trying to figure out what type of ...
2
votes
2answers
2k views

Why would ceiling fan reverse air flow without me changing directions?

I have this exact ceiling fan, and so far it has worked nicely. It is mounted in my bedroom, I believe height to floor is about 12 feet and the rod from the ceiling to the actual fan is about 18 ...