Date: Fri, 6 Jul 2007 11:48:17 -0700
Reply-To: "Mike \"Rocket J Squirrel\" Elliott" <camping.elliott@GMAIL.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: "Mike \"Rocket J Squirrel\" Elliott" <camping.elliott@GMAIL.COM>
Subject: Re: FYI - Venting for mobile refrigerators
In-Reply-To: <c4e7c5f90707061037g732945a0mdea949a85bc8c94c@mail.gmail.com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Insulation between the side of the van and the rear of the reefer is
very very very useful if that side of the van is being baked by the sun.
Take a look at the venting article and try to emulate one of the Good
Venting schemes. As can be seen, laminar air flow upward is achieved by
the use of baffles which squeeze the air close to the bits that want to
have their heat removed, and discourage random circulation of hot air
back down or around and around. Now, what you do between the rear of the
reefer and the van is up to you. Good Venting 2 could be achieved by
building in a foamcore or other easy to experiment with wall behind the
reefer and the side of the van. Me, here, in my climate,* I'd see about
filling in the space between this new wall and the side of the reefer
with insulation. Or you can just leave the existing thinnish insulation
in place. Or forget the new wall and build in baffles per Good Venting
3. And park with the driver's side away from the sun.
I don't live in a sufficiently humid or watery clime to advise on how to
minimize insulation = rust problems, maybe someone else can chime in
here, referring to the document
http://rvmobile.com/Tech/Trouble/vent.htm
Mike "Rocket J Squirrel" Elliott
71 Type 2: the Wonderbus
84 Westfalia: Mellow Yellow ("The Electrical Banana")
74 Utility Trailer. Ladybug Trailer, Inc., San Juan Capistrano
KG6RCR
On 7/6/2007 10:37 AM neil wrote:
> IIRC, there was insulation between body panel and somewhat near back
> of fridge on my Westy.
>
> Some think that the insualtion (glass type) only aides in promoting
> rust if water gathers and stays in it. i.e. from leaky "city" water or
> other connection.
>
> Not sure if adding insualtion would help. Especially if too close to
> cooling fins of fridge. (would possibly inhibit flow of air)
>
>
> Neil.
>
> On 7/6/07, Paul Chubbuck <paul@takingflight.net> wrote:
>> So what's your opinion on insulation behind the Dometic. Should you
>> add to
>> what's there, or take out what's there?
>>
>> Paul
>>
>> -----Original Message-----
>> From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On
>> Behalf Of
>> Mike "Rocket J Squirrel" Elliott
>> Sent: Friday, July 06, 2007 11:13 AM
>> To: vanagon@GERRY.VANAGON.COM
>> Subject: Re: FYI - Venting for mobile refrigerators
>>
>> On 7/6/2007 9:55 AM neil wrote:
>>
>> > That was me!
>>
>> So what's keeping you?
>>
>> >
>> > (and I still haven't had the balls to cut a hole in floor under
>> > fridge)
>>
>> Oh. Well, okay.
>>
>> > And further to that idea, I thought it would be good to use a manifold
>> > of some sort through which air would be drawn in "against" frame of
>> > van. The frame is metal is cool to the touch, so air being drawn
>> > against it should get cooled down.
>>
>> I dunno about that -- the frame has to be at the same temperature as
>> the air
>> around it. Steel is not a great conductor of heat, but it does
>> transfer heat
>> from your fingertips well enough to feel cool. But still, it's at ambient
>> temp.
>>
>> --
>> Mike "Rocket J Squirrel" Elliott
>> 71 Type 2: the Wonderbus
>> 84 Westfalia: Mellow Yellow ("The Electrical Banana")
>> 74 Utility Trailer. Ladybug Trailer, Inc., San Juan Capistrano KG6RCR
>>
>
>
> --
> Neil Nicholson. 1981 Air Cooled Westfalia.
>
> http://web.mac.com/tubaneil
>
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