Date:         Sun, 28 Aug 2016 17:31:59 -0400
Reply-To:     Edward Maglott <emaglott3@GMAIL.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Edward Maglott <emaglott3@GMAIL.COM>
Subject:      Re: Dometic fridge (external) fan replacement...
In-Reply-To:  <CAB2RwfjxJqF7FA3cW90LCOdH6yRTgheaDNpES+KGggkQw+tj6g@mail.gmail.com>
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I think the original fan moved more air and across a wider area than a
computer fan too.

I had a tiny cpu fan on the cooling fins inside for a while but took it off
because it didn't seem to be doing much.  Note I did have it on the right
end of the fins which I think is the part with the least cooling power.  I
theorize that with the cooling fin unit near the top of the fridge
interior, convection is going to be pretty effective with circulating the
warmest air up to the unit where it gets cooled.

I do want to / plan to do the fan in the "city water" spot to pull heat to
outside the van.  Has anybody done a good write up on that project?

Thanks,
edward

On Sun, Aug 28, 2016 at 2:46 PM, Neil N <musomuso@gmail.com> wrote:

> Hardly scientific or accurate, but judging by feel, the OEM Dometic
> propeller seemed to move more air than the computer case fan I hand on
> hand.
> But for the fuss of finding a new motor to put that prop onto, a
> computer case fan seems to be the logical choice when the OEM fan
> fails.
> Some folks run two computer case rear fans and even build shrouds to
> help direct the air. If one built a shroud around the cooling fins,
> I'd suggest the rear fan(s) should be controlled by a switch and
> remain connected to the OEM thermal switch. My guess is that a shroud
> is a two fold affair; when the fan(s) is on, it will do a better job
> of directing air along the cooling fins but it would also confine that
> heat when fan(s) is off.
>
> On one of my Domestics, I added a "city water" fan to pull air from
> behind the fridge to the outside. This fan was switched. I routinely
> turned it on when traveling in really hot weather.
>
> Neil.
>
>
>
> On 8/28/16, Jim Felder <jim.felder@gmail.com> wrote:
>
> > I think the consensus is going to be that regular computer fans don't do
> a
> > very good job.
>
> --
> Neil n
>
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>
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>
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>