Which gives more airflo ,a 4 or 5 blade ceiling fan ?

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"desgnr" wrote in message
...
Which gives more airflo ,a 4 or 5 blade ceiling fan ?


Number of blades does not mean anything. You'd have to look at the CFM
rating. More important than number is the size, pitch, speed of the blade.

desgnr wrote:
Which gives more airflo ,a 4 or 5 blade ceiling fan ?


It depends. Which has biggest diameter, size of blades, and steepest
pitch of blades? Assuming all those are the same, and the
blade-to-ceiling distance is the same, a 5-blade would. I haven't
noticed a 4-blade fan in use or in the stores, in years. (Not that I
have looked real hard, mind you. The question never came up for me.)

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desgnr wrote:
Which gives more airflo ,a 4 or 5 blade ceiling fan ?

Everything else being equal, 5 would give you more air flow than 4.



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LSMFT

I'm trying to think but nothing happens.........

On Mar 28, 7:34*am, aemeijers wrote:

snip

I haven't
noticed a 4-blade fan in use or in the stores, in years.

Hunter still has 4 blade models, mostly smaller and specialty uses,
like kids' rooms.

Joe

On Sun, 28 Mar 2010 08:38:34 -0400, LSMFT wrote:

desgnr wrote:
Which gives more airflo ,a 4 or 5 blade ceiling fan ?

Everything else being equal, 5 would give you more air flow than 4.

One of my fans came with 5 blades, and with holes in the motor so you
can install 4 or 5. Is there any reason for preferring 4 blades?
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Mark Lloyd
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Mark Lloyd wrote:
On Sun, 28 Mar 2010 08:38:34 -0400, LSMFT wrote:

desgnr wrote:
Which gives more airflo ,a 4 or 5 blade ceiling fan ?

Everything else being equal, 5 would give you more air flow than 4.

One of my fans came with 5 blades, and with holes in the motor so you
can install 4 or 5. Is there any reason for preferring 4 blades?

noise. fewer is slightly less noise but only really noticable at high speed