Re: Fan recommendation

NoSpam@xxxxxxx wrote:
I need to replace a good quality fan that has served us well for many
years. I want to get a fan that:
Moves a lot of air
Will last a long time
Is reasonably quiet for the work it does
Lowest reasonable power consumption

The fan should be approximately 22-24" or so wide. In case it helps, you
can see the fan that is being replaced at: http://j7000.com/e/fan.jpg

Are there particularly good models and/or brands I should consider? Info
on where they are sold would also be helpful.

Thanks.

I wish I knew more about choosing from the hundreds of fans on the market.

If you need to a certain volume of air, bigger should be more efficient. For example, if a 20" and a 10" model are both designed to move the same volume per minute, the speed of air from the 10" model will have to be 4 times faster, and that means 16 times more energy.

A good fan is designed to move a certain volume. It's less efficient if run faster or slower. I imagine with many three-speed fans, "high" is to make sales by showing off and is not efficient.

Twenty years ago I made an impulse purchase of a cheap 12" table fan in a drugstore because it was quiet and moved air adequately. After perhaps 20,000 hours, it's still working fine. On "low" it's quiet and uses only 25 watts, but it will provide a cooling draft across the room. Like a classic metal table fan, it has a wire cage.

Relatives brought a 10" version by the same manufacturer. It's noisy and less effective.

Ten years ago I bought what looked like a 12" table fan on the internet. It's the kind where the blade is hard to see inside the globe-shaped plastic shroud. After buying it, I found that the blade is only 10". It's noisier than my 12" fan, and harder to clean.

I have an old steel 20" box fan that takes 400 watts and weighs 29 pounds. The bearings have become noisy. I also have a flimsy 19" plastic box fan that takes 200 watts and weighs 9 pounds. It doesn't blow nearly as well as the old metal fan, but the plastic one is what I use to ventilate at night. On "medium" it's quieter, uses only 100 watts, and may move nearly as much air as on "high."

When it comes to ventilating a house at night, I, like you, wish I knew more about the available fans.
.

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