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Posted by Michael Bulatovich on March 8, 2008, 9:37 am
MiamiCuse wrote:
>>
>>> I have four rooms where the air conditioning outlet (a 12"x12
>>> square box) is located at the center of the room.
>>>
>>> I would like to install ceiling fans in three of the four rooms and
>>> naturally I wish to mount the ceiling fans also near the center of
>>> the room.
>>>
>>> This means the AC vents will be inside of the "sweep circle" of the
>>> ceiling fan blades. I just mounted the fan box but has not yet
>>> installed the fan yet, but I think this will look odd...
>>>
>>> I thought about relocating the AC vents but it will be quite a bit
>>> of work, and locating it somewhere else will not be as efficient.
>>>
>>> So I want to ask if there are some guidelines regarding AC vents and
>>> ceiling fans being too close to each other...
>>>
>>> Thanks,
>>>
>>> MC
>>
>> 2 vents are better than 1.
>> You can split the vents but each has to be a little more than half
>> the size of the original.
>> In other words, install 2 new 6x8 registers to replace the current
>> 12 x 12.
>> You probaly have the old skool box ducts but you can replace them
>> with flexducts.
>> Again, the ducts should be a little more than half the cross section
>> of the original.
>> One more thing, consider the direction of the air flow from the new
>> registers, you don't want them blowing directly on somebody.
>> I'd use the 4 way diffusers.
>>
>
> If I split them in two I should place them as far apart as possible? Does
> it mean I need to replace the existing solid duct with two
> smaller ducts? There may be problem with space it's very crowded in
> the attic I have 4 hihat lights, 1 AC vent, 1 AC air intake return, a
> ceiling fan and a ton of EMT pipes cris crossing. If I put the two
> vents one on each side of the ceiling fan, the fan blades are 26"
> long but the vent only 24" from the center so it's still overlapping
> a bit is that acceptable? Otherwise I will probably need to take
> down the entire ceiling sheet rock and shuffle all fixtures to make
> that work...
MC, without seeing the whole situation, and being ready to crunch some
numbers, it's **highly unprofessional** to be giving out detailed advice
about how to modify a distribution system, and you can easily poke yourself
in the eye with a rule of humb. Seriously, even with what little I know
about it, there's way to little data on the table. "Fools rush in ... "
Get a little professional help if comfort is important to you in this space.
I have a great guy who might be persuaded to fly down for a free two hours
consult, given the state of our sidewalks right now...
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