Date: Wed, 15 Sep 2004 10:23:39 -0700
Reply-To: Vince S <gipsyflies@COMCAST.NET>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Vince S <gipsyflies@COMCAST.NET>
Subject: Re: Top-Load Fridge for Westy
In-Reply-To: <EEEJIEJFIKFOCCBNCFHCIEBLCDAA.wilden1-1@sbcglobal.net>
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I swapped the factory fan with a computer fan 12 years ago when the OE
fan died. The fan I added uses 1/2 the power of the stock fan as it is
the more efficient brushless. I am reluctant to add more fan due to the
added current overhead. My plan is to improve the heat dissipation
venting to the outside using just one fan.
Using ice to supplement the fridge performance likens the solution used
in marine except they use glycol instead of water to store the 'cold'.
Unfortunately retrofitting this feature requires trading off the what
already meager internal volume.
There is room for efficiency improvement of the Dometic while at the
same time not to increase the dc power consumption by adding cooling
fans.
- Vince
http://gipsyflies.home.comcast.net
1989 Vanagon GL Camper
1993 Mazda Miata (for sale)
1996 Land Rover Discovery
2005 Mini Cooper S
-----Original Message-----
From: Stan Wilder [mailto:wilden1-1@sbcglobal.net]
Sent: Wednesday, September 15, 2004 10:00 AM
To: Vince S; vanagon@GERRY.VANAGON.COM
Subject: RE: Top-Load Fridge for Westy
I substantially improved the performance and cold recovery in my
standard Dometic simply by adding a little 12v Computer CPU fan to the
sidewall of the fridge. As preparation for travel I normally put a
container of Ice in my fridge and ran it on 120v for an overnight prep
period. Everything I put in the fridge from that point forward was pre
cooled either from my home refrigerator at departure time or from being
in my ice chest that I always carried too. One of the big culprits of
refrigerator poor performance is simply hardened door seals that leak
constantly. All of the things above do nothing to stop drop out of cold
when the door is opened but it will produce two munchkin trays of ice
once a day. Some of the highest quality, thick sidewall Styrofoam
coolers come from Omaha Steaks and Honey Cured Hams as shipping
containers. I've kept three bags of ice for three days in these with
very little melt down.
Stan Wilder
More Power with Performance Coatings http://www.engineceramics.com
-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com]On Behalf
Of Vince S
Sent: Wednesday, September 15, 2004 11:29 AM
To: vanagon@GERRY.VANAGON.COM
Subject: Top-Load Fridge for Westy
There has been some recent discussions on the ideal fridge set up for
Westy/Vanagon. Many expressed the desired to have a top load as the cold
air does not drop out when you open the door. I was interest in how to
improve the fridge performance while able to maintain the stock
appearance and floor plan of the Westy.
Here is the good news from my recent research for a good portable
fridge/freezer. Without substantially changing the Westy floor plan you
can install a 35-45 quart units made by Engel or Waeco.
Waeco's Coolmatic series are based on the German Danfoss DF35 compressor
very widely used in marine and high end vehicles as OEM cooler fridge.
Coolmatic also make a line of high end cooler/freezer for truckers. You
can read up on all this at Waeco's website.
Engel in addition to selling under their own brand also makes most if
not all of the DC fridge for Norcold as well as a series of portable
fridge/freezers. Engel also makes all the MRFT series portable units for
Norcold. Engel is unique in the compressor technology with their own
swing compressor which they have used for over 35 years. It is an
electro mechanical design with take advantage of resonance
characteristic instead of the common reciprocal design (piston) driven
rotary motor.
Here is the skinnies:
Waeco and Engel portable units in the 1 to 2 cu ft are around 14" wide
with varied height and width. Most of these model will fit in the space
of the cabinet adjacent to the bench seat. The depth (horizontal depth)
of these space inside the cabinetry is between 15" at the bottom and 16"
at the top due to the curvature of the body. You will have to relocate
the fresh water tank to make room for the fridge. The obvious location
would be to take out the Dometic as you won't need it. Better yet you
should be able to accommodate a real deep cycle battery in it's vacancy.
If planned carefully you would be able to maintain the stock appearance
of the Westy cabinetry. You might have to slight alter the two cubby
hole doors for better fridge access.
The costs of the Engel and Coolmatic ac/dc units are very close while
the dc only Coolmatic are much cheaper. Both manufacturers products are
very good and will keep the internal temperature below freezing (able to
keep ice cream frozen) if you choose to. Judging from their spec and
user feedback/reviews they seems quite comparable though Engel appears
to have a slight edge. The Coolmatic unit has the unique battery monitor
function which you can set to automatically stop drawing the current
when the battery voltage gets too low.
Am I ready to do this conversion?
It is a hard question. My Dometic has been trouble free all these years.
My only complaint is the heat it throw into the cabin and the lack of
freezer space to keep meat and seafood from spoiling. I like the fact
that it draw so little dc current that I can run it days on end. I also
hate to butcher the nice Westy cabinet. I am leaning solving the cabin
heat gain from the Dometic fridge and modifying the cold plate to hold
the meat better. After I have a chance to test out my planned purchase
of the Engel 35 for used in my other vehicle it might change my mind.
Here are some links to the products:
http://www.i-m-d.com/engel/1products.htm
http://www.coolmatic.net http://www.norcold.com/acdc_mrft440.cfm
There are also many other links in my other recent threads on
refrigeration.
- Vince
http://gipsyflies.home.comcast.net
1989 Vanagon GL Camper
1993 Mazda Miata (for sale)
1996 Land Rover Discovery
2005 Mini Cooper S
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