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? Whole-House fans for flat roof house? DonC 10-06-2007
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Posted by tbasc@bellsouth.net on October 6, 2007, 9:18 pm
> Hi all,
>
> In every house I've owned, until now, I've installed a whole-house fan.
> They significantly reduce AC costs and make for comfortable living. Alas,
> that was while I lived in Michigan in houses that had attics. My typical
> unit included a twist timer and variable speed motor.
>
> Now we live in southeastern AZ in a condo with a flat built-up roof so a
> typical attic unit won't work. But we still have frequent cool nights that
> would we could benefit from.
>
> Anybody here have any experience with WH fans in a similar setting? My
> research so far has been disappointing -- no variable speed fans and fewer
> available units : (
>
> Thanks

Condo board is going to have a lot to say about cutting holes and
adding electric loads, I should think.
Check the rules first.
T


Radiant Heat 468x60
Posted by on October 7, 2007, 11:04 am
>
>
>
>
>
> > Hi all,
>
> > In every house I've owned, until now, I've installed a whole-house fan.
> > They significantly reduce AC costs and make for comfortable living. Alas,
> > that was while I lived in Michigan in houses that had attics. My typical
> > unit included a twist timer and variable speed motor.
>
> > Now we live in southeastern AZ in a condo with a flat built-up roof so a
> > typical attic unit won't work. But we still have frequent cool nights that
> > would we could benefit from.
>
> > Anybody here have any experience with WH fans in a similar setting? My
> > research so far has been disappointing -- no variable speed fans and fewer
> > available units : (
>
> > Thanks
>
> Condo board is going to have a lot to say about cutting holes and
> adding electric loads, I should think.
> Check the rules first.

That's what I was thinking too. I'd check around first with any
neighbors and see what you can find out regarding anything similar
that has been done and how it got approved. Unless this has been
done before, you may find that you are going to have a tough time
convincing a condo board to OK cutting big holes in a flat roof for a
fan.




Posted by DonC on October 7, 2007, 1:54 pm

>>
>>
>>
>>
>>
>> > Hi all,
>>
>> > In every house I've owned, until now, I've installed a whole-house fan.
>> > They significantly reduce AC costs and make for comfortable living.
>> > Alas,
>> > that was while I lived in Michigan in houses that had attics. My
>> > typical
>> > unit included a twist timer and variable speed motor.
>>
>> > Now we live in southeastern AZ in a condo with a flat built-up roof so
>> > a
>> > typical attic unit won't work. But we still have frequent cool nights
>> > that
>> > would we could benefit from.
>>
>> > Anybody here have any experience with WH fans in a similar setting? My
>> > research so far has been disappointing -- no variable speed fans and
>> > fewer
>> > available units : (
>>
>> > Thanks
>>
>> Condo board is going to have a lot to say about cutting holes and
>> adding electric loads, I should think.
>> Check the rules first.
>
> That's what I was thinking too. I'd check around first with any
> neighbors and see what you can find out regarding anything similar
> that has been done and how it got approved. Unless this has been
> done before, you may find that you are going to have a tough time
> convincing a condo board to OK cutting big holes in a flat roof for a
> fan.

Condo has no control re what I do with my roof. They're limited to control
of exterior architecture, exterior paint colors and landscaping. THANK GOD!
We have no condo Nazis here : )



Posted by xPosTech on October 7, 2007, 9:54 am
On 10/6/2007 3:15 PM, DonC wrote:
> Hi all,
>
> In every house I've owned, until now, I've installed a whole-house fan.
> They significantly reduce AC costs and make for comfortable living. Alas,
> that was while I lived in Michigan in houses that had attics. My typical
> unit included a twist timer and variable speed motor.
>
> Now we live in southeastern AZ in a condo with a flat built-up roof so a
> typical attic unit won't work. But we still have frequent cool nights that
> would we could benefit from.
>
> Anybody here have any experience with WH fans in a similar setting? My
> research so far has been disappointing -- no variable speed fans and fewer
> available units : (
>
> Thanks
>
>
>
>
>
>
Over here when I was a kid we had a whole house fan in a window. It's
just a small attic unit mounted vertically. They don't have to be
centrally located, just on the other side of the house. Open the window
the fan is in and open enough others to form a draft (something my
grandma tried to stay out of).

At night, we only opened bedroom windows. I still can't sleep with a
fan blowing on me. :-)
--
Ted
I wasn't born in Texas but
I got back here as soon as I could


When the winds of change blow hard enough, the most
trivial of things can become deadly projectiles.

Posted by DonC on October 7, 2007, 1:25 pm

> On 10/6/2007 3:15 PM, DonC wrote:
>> Hi all,
>>
>> In every house I've owned, until now, I've installed a whole-house fan.
>> They significantly reduce AC costs and make for comfortable living.
>> Alas, that was while I lived in Michigan in houses that had attics. My
>> typical unit included a twist timer and variable speed motor.
>>
>> Now we live in southeastern AZ in a condo with a flat built-up roof so a
>> typical attic unit won't work. But we still have frequent cool nights
>> that would we could benefit from.
>>
>> Anybody here have any experience with WH fans in a similar setting? My
>> research so far has been disappointing -- no variable speed fans and
>> fewer available units : (
>>
>> Thanks
>>
>>
>>
>>
> Over here when I was a kid we had a whole house fan in a window. It's
> just a small attic unit mounted vertically. They don't have to be
> centrally located, just on the other side of the house. Open the window
> the fan is in and open enough others to form a draft (something my grandma
> tried to stay out of).
>
> At night, we only opened bedroom windows. I still can't sleep with a fan
> blowing on me. :-)
> --
> Ted

A typical WH fan is 24" to 36" square and move 3200 to 7000 CFM.

Link to WH fans: http://tinyurl.com/28cn5f



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