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Smaller fan than Fan-Tastic?

PostPosted: Wed Mar 09, 2011 7:07 pm
by GuitarPhotog
I was planning to install a Fan-Tastic 4000 fan in the roof of my Tin Tent.

I measured the trailer, and I have less than 12" between roof ribs, so a 14" square Fan-Tastic won't fit.

I need something that's integrated, has a dome opening, and is assured to be weatherproof. I'm very nervous about cutting a hole in the aluminum roof, and I have no confidence in my ability to fabricate something that is weather proof.

As usual, thanks in advance to a great bunch of folks.

<Chas>

PostPosted: Wed Mar 09, 2011 7:55 pm
by KenC
SoCal Teardrop sells a smaller fan unit and draws less amps

PostPosted: Wed Mar 09, 2011 8:43 pm
by GuitarPhotog
KenC wrote:SoCal Teardrop sells a smaller fan unit and draws less amps


I don't find one on their site? I emailed them to inquire.

Fewer amps would be handy.

<Chas>

PostPosted: Wed Mar 09, 2011 8:55 pm
by GuitarPhotog
Found it. Not the most user-friendly site.

Thanks for the lead - 6" will fit my needs.

<Chas>

PostPosted: Wed Mar 09, 2011 11:24 pm
by KenC
GuitarPhotog wrote:Found it. Not the most user-friendly site.

Thanks for the lead - 6" will fit my needs.

<Chas>


Funny, I was just about to email you the link. Yes it is hard to find but they do have some neat stuff. I've been to there shop, they have some very nice trailers, I plan on using there hinge for my doors.

your trailer looks awesome, is that an aluminum frame and skin ? . :thumbsup:

PostPosted: Thu Mar 10, 2011 12:01 am
by GuitarPhotog
The trailer sits on a chassis of three long tubes with a couple of cross members fore and aft of the axle.

The body frame is 1" iron angle iron welded with atrocious welds. The aluminum skin is riveted to the iron ribs. The cabin storage cabinets and galley cabinets are riveted together and to the skin.

It makes the trailer very light and rigid, but difficult to modify or customize.

My speculation is that it was made by a couple of aircraft engineers who knew how to work with aluminum and how to design, but who couldn't weld worth a damn :D

<Chas>

PostPosted: Thu Mar 10, 2011 6:20 am
by Shadow Catcher
Or use computer case fans. Cheap, if you use three speed fans adjustable, very low power draw.

PostPosted: Thu Mar 10, 2011 7:47 am
by 48Rob
The body frame is 1" iron angle iron welded with atrocious welds.
My speculation is that it was made by a couple of aircraft engineers who knew how to work with aluminum and how to design, but who couldn't weld worth a damn

<Chas>


Is it safe to proceed? :thinking:

Rob

PostPosted: Thu Mar 10, 2011 10:20 am
by GuitarPhotog
Shadow Catcher wrote:Or use computer case fans. Cheap, if you use three speed fans adjustable, very low power draw.


You didn't read the part about needing a pop-up vent and making it weatherproof did you :thinking:

PostPosted: Thu Mar 10, 2011 10:23 am
by GuitarPhotog
48Rob wrote:
The body frame is 1" iron angle iron welded with atrocious welds.
My speculation is that it was made by a couple of aircraft engineers who knew how to work with aluminum and how to design, but who couldn't weld worth a damn

<Chas>


Is it safe to proceed? :thinking:

Rob


Yeah, the riveted skin holds the whole thing together quite well. It's very rigid.

<Chas>

PostPosted: Thu Mar 10, 2011 5:03 pm
by GuitarPhotog
Ordered the 6" round fan from SoCal Teardrops. Mike took a lot of time to help me make sure it would work in my trailer.

Thanks to KenC for the pointer, and to everyone else for their input.

<Chas>

PostPosted: Sun Mar 20, 2011 4:11 pm
by NathanL
GuitarPhotog wrote:
Shadow Catcher wrote:Or use computer case fans. Cheap, if you use three speed fans adjustable, very low power draw.


You didn't read the part about needing a pop-up vent and making it weatherproof did you :thinking:


Boat places and places like Jamestown distributors sell smaller mushroom vent covers from 2" on up to really large for pretty cheap that could cover a computer 80/100/120mm fan and are low profile like a few inches tall at most.

PostPosted: Sun Mar 20, 2011 11:33 pm
by GuitarPhotog
Well, the So-Cal Teardrops fan isn't going to be workable in my situation :(

So I'm off to the computer store to look at computer fans.

How do you vary the speed of such? Just put a rheostat in series with the motor?

<Chas>

PostPosted: Mon Mar 21, 2011 12:14 am
by eamarquardt
Vent:

http://www.easternmarine.com/Aluminum-2 ... -10-091-0/

Really cool fan controller that will control six fans and displays 6 temperatures (probes included):

http://www.xoxide.com/scythe-kaze-maste ... oller.html

Review of fan controller:

http://www.pcshoptalk.com/showthread.ph ... Controller

Or buy PWM controller for one or more "ganged" fans:

http://cgi.ebay.com/12-40V-7A-80W-DC-Mo ... 25621b34fb

120mm case fans:

http://www.bing.com/shopping/cooler-mas ... ORM=ENCA11

Way cooler (figuratively speaking) and for about the same price or less than a "fantastic fan".

Cheers,

Gus

PostPosted: Mon Mar 21, 2011 12:15 am
by eamarquardt
GuitarPhotog wrote:Well, the So-Cal Teardrops fan isn't going to be workable in my situation :(

So I'm off to the computer store to look at computer fans.

How do you vary the speed of such? Just put a rheostat in series with the motor?

<Chas>


Use a PWM controller to vary the speed of the fan. See my earlier post.

Cheers,

Gus