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New Refrigerator [message #142613] Tue, 06 September 2011 15:24 Go to next message
Carl S. is currently offline  Carl S.   United States
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I must be crazy! Right after completing the disc brake/reaction arm installation, I started on the next project, a new fridge. I have posted some pics on the photo site and will update as I complete the project:


http://www.gmcmhphotos.com/photos/showgallery.php?cat=5863

I'm also doing a new kitchen counter/sink/stove/backsplash......
WooHoo, nutty as a fruit cake!!!!!!!


Carl Stouffer '75 ex Palm Beach Tucson, AZ. Chuck Aulgur Reaction Arm Disc Brakes, Quadrabags, 3.70 LSD final drive, Lenzi knuckles/hubs, Dodge Truck 16" X 8" front wheels, Rear American Eagles, Solar battery charging. GMCSJ and GMCMI member

[Updated on: Tue, 06 September 2011 16:00]

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Re: New Refrigerator [message #142616 is a reply to message #142613] Tue, 06 September 2011 15:50 Go to previous messageGo to next message
armandminnie is currently offline  armandminnie   United States
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Carl, something wrong with your link. Check it out.

Armand Minnie
Marana, AZ
'76 Eleganza II TZE166V103202
visit my gmc blog
click here to visit gmcws.org
Re: New Refrigerator [message #142618 is a reply to message #142616] Tue, 06 September 2011 15:59 Go to previous messageGo to next message
Carl S. is currently offline  Carl S.   United States
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armandminnie wrote on Tue, 06 September 2011 13:50

Carl, something wrong with your link. Check it out.



Try this one:

http://www.gmcmhphotos.com/photos/showgallery.php?cat=5863


Carl Stouffer '75 ex Palm Beach Tucson, AZ. Chuck Aulgur Reaction Arm Disc Brakes, Quadrabags, 3.70 LSD final drive, Lenzi knuckles/hubs, Dodge Truck 16" X 8" front wheels, Rear American Eagles, Solar battery charging. GMCSJ and GMCMI member
Re: New Refrigerator [message #142621 is a reply to message #142613] Tue, 06 September 2011 16:11 Go to previous messageGo to next message
armandminnie is currently offline  armandminnie   United States
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Carl, nice job on the refrigerator compartment. I'll bet that refrigerator is going to work well even during an Arizona summer. I'll bet I can help mine a lot with some similar work. Thanks.

Armand Minnie
Marana, AZ
'76 Eleganza II TZE166V103202
visit my gmc blog
click here to visit gmcws.org
Re: New Refrigerator [message #142623 is a reply to message #142621] Tue, 06 September 2011 16:15 Go to previous messageGo to next message
Carl S. is currently offline  Carl S.   United States
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armandminnie wrote on Tue, 06 September 2011 14:11

Carl, nice job on the refrigerator compartment. I'll bet that refrigerator is going to work well even during an Arizona summer. I'll bet I can help mine a lot with some similar work. Thanks.



Hope so! That was a lot of work!


Carl Stouffer '75 ex Palm Beach Tucson, AZ. Chuck Aulgur Reaction Arm Disc Brakes, Quadrabags, 3.70 LSD final drive, Lenzi knuckles/hubs, Dodge Truck 16" X 8" front wheels, Rear American Eagles, Solar battery charging. GMCSJ and GMCMI member
Re: New Refrigerator [message #142628 is a reply to message #142623] Tue, 06 September 2011 16:56 Go to previous messageGo to next message
WD0AFQ is currently offline  WD0AFQ   United States
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Looks great Carl. I think it is same one we have. You will love it, or Kathy will.
Dan


3 In Stainless Exhaust Headers One Ton All Discs/Reaction Arm 355 FD/Quad Bag/Alum Radiator Manny Tran/New eng. Holley EFI/10 Tire Air Monitoring System Solarized Coach/Upgraded Windows Satelite TV/On Demand Hot Water/3Way Refer
Re: New Refrigerator [message #142633 is a reply to message #142613] Tue, 06 September 2011 17:57 Go to previous messageGo to next message
A Hamilto is currently offline  A Hamilto   United States
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Carl S. wrote on Tue, 06 September 2011 15:24

...Right after completing the disc brake/reaction arm installation, I started on the next project, a new fridge. I have posted some pics on the photo site and will update as I complete the project:

I wonder if it would be more thermodynamically efficient if the rear of the compartment (where the coils are radiating) was flat black (or some other color?) instead of reflective foil?
Re: [GMCnet] New Refrigerator [message #142643 is a reply to message #142633] Tue, 06 September 2011 20:27 Go to previous messageGo to next message
USAussie is currently offline  USAussie   United States
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The coils radiate and convect heat into the air and the walls.

The foil reflects the radiated heat and keeps it from transferring into the walls of the coach.

Air flow goes in the side vent and out the top vent to carry it away.

Black walls would absorb heat the heat into the coach.

Regards,
Rob M.

-----Original Message-----
From: A.

I wonder if it would be more thermodynamically efficient if the rear of the compartment (where the coils are radiating) was flat
black (or some other color?) instead of reflective foil?
--
'73 23' CanyonLands


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Regards, Rob M. (USAussie) The Pedantic Mechanic Sydney, Australia '75 Avion - AUS - The Blue Streak TZE365V100428 '75 Avion - USA - Double Trouble TZE365V100426
Re: [GMCnet] New Refrigerator [message #142648 is a reply to message #142643] Tue, 06 September 2011 21:01 Go to previous messageGo to next message
A Hamilto is currently offline  A Hamilto   United States
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Robert Mueller wrote on Tue, 06 September 2011 20:27

The coils radiate and convect heat into the air and the walls.

The foil reflects the radiated heat and keeps it from transferring into the walls of the coach.

Air flow goes in the side vent and out the top vent to carry it away.

Black walls would absorb heat the heat into the coach.

Regards,
Rob M.
Correct. Where does the foil reflect the radiated heat? Back towards the coils and the rear surface of the fridge. A black surface would absorb the radiated heat and convect it into the air. A black surface between the coils and the foil (with a gap at the bottom of the compartment, and an air gap between the black surface and the foil and the black surface and the coils) would convect heat better, without reflecting as much heat directly back to the fridge the way the foil does.
Just a thought.
Re: [GMCnet] New Refrigerator [message #142649 is a reply to message #142643] Tue, 06 September 2011 21:03 Go to previous messageGo to next message
ggroth is currently offline  ggroth   United States
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Carl, nice job; perhaps you've read on here about the number of fires connected with propane reefers, like it's not "if" but "when" it occurs. You may want to check that out.

geo groth '73 260 Sequoia Carson City Nevada 89703
Re: [GMCnet] New Refrigerator [message #142653 is a reply to message #142648] Tue, 06 September 2011 21:34 Go to previous messageGo to next message
USAussie is currently offline  USAussie   United States
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A.

Put it another way, will the refrigerator cool better if the walls around it are hot or cool?

Regards,
Rob M.

-----Original Message-----
From: A.

Correct. Where does the foil reflect the radiated heat? Back towards the coils and the rear surface of the fridge. A black
surface would absorb the radiated heat and convect it into the air. A black surface between the coils and the foil (with a gap at
the bottom of the compartment, and an air gap between the black surface and the foil and the black surface and the coils) would
convect heat better, without reflecting as much heat directly back to the fridge the way the foil does.
Just a thought.
--
'73 23' CanyonLands

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Re: [GMCnet] New Refrigerator [message #142654 is a reply to message #142649] Tue, 06 September 2011 21:56 Go to previous messageGo to next message
Carl S. is currently offline  Carl S.   United States
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ggroth wrote on Tue, 06 September 2011 19:03

Carl, nice job; perhaps you've read on here about the number of fires connected with propane reefers, like it's not "if" but "when" it occurs. You may want to check that out.


So George, are you saying I just spent $1500.00 and spent two weekends of work just to eventually burn my coach to the ground?


Carl Stouffer '75 ex Palm Beach Tucson, AZ. Chuck Aulgur Reaction Arm Disc Brakes, Quadrabags, 3.70 LSD final drive, Lenzi knuckles/hubs, Dodge Truck 16" X 8" front wheels, Rear American Eagles, Solar battery charging. GMCSJ and GMCMI member
Re: [GMCnet] New Refrigerator [message #142667 is a reply to message #142649] Wed, 07 September 2011 09:01 Go to previous messageGo to next message
philipswanson is currently offline  philipswanson   United States
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George,

Hope you were not at the local IHOP yesterday.

Phil Swanson
Re: [GMCnet] New Refrigerator [message #142676 is a reply to message #142653] Wed, 07 September 2011 10:00 Go to previous messageGo to next message
A Hamilto is currently offline  A Hamilto   United States
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Robert Mueller wrote on Tue, 06 September 2011 21:34

A.

Put it another way, will the refrigerator cool better if the walls around it are hot or cool?

Regards,
Rob M.
I would think the heat from the walls would convect into the air and out the top of the compartment as well as from the fridge itself. I don't know if a black compartment woould be better or worse for heat dissapation. I was fishing for points of view and I got yours. I appreciate it.
Another thought that popped into my head was fire containment. I don't know about the flammability of that foil backed stuff, but building code here says two layers of 5/8" drywall is considered a 4-hour firewall. I would consider putting a layer or two of drywall in the compartment under or over the foil backed stuff if it would fit. Especially if the fridge runs on propane.
Re: [GMCnet] New Refrigerator [message #142678 is a reply to message #142676] Wed, 07 September 2011 10:25 Go to previous messageGo to next message
mike miller   United States
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ahamilto wrote on Wed, 07 September 2011 08:00

... I would consider putting a layer or two of drywall in the compartment under or over the foil backed stuff if it would fit. Especially if the fridge runs on propane.


There isn't much space in there. You might have to install a smaller refrigerator.

I have always considered the refrigerator as "outside the coach" and do not see the value of insulating the outside wall/skin of the coach. Seal and insulate the sides, bottom and any where between this space and the "true insides" of the coach. AND provide the proper clearances of fire proof material to create the "heat chimney" for the propane refer to "breath" properly.

My guess on the color of the inside skin of the body wouldn't make much, if any, difference.... but for a propane refer, the heat in the "chimney" is needed to get the air to flow properly.

While I know of the value of a propane refer for dry camping, I really like the brand new all electric compressor refer I installed in my '73. (And not really used.... bought the '78.) Too bad the larger all electric will not fit in either of my Birch's. Sad

I might just get out the saw and put my "wood butcher" skills to use! Evil or Very Mad


Mike Miller -- Hillsboro, OR -- on the Black list
(#2)`78 23' Birchaven Rear Bath -- (#3)`77 23' Birchaven Side Bath
More Sidekicks than GMC's and a late model Malibu called 'Boo' http://m000035.blogspot.com
Re: [GMCnet] New Refrigerator [message #142682 is a reply to message #142678] Wed, 07 September 2011 11:07 Go to previous messageGo to next message
USAussie is currently offline  USAussie   United States
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Mike,

I bought four 4" computer 12vdc fans from Fry's and mounted them just above the fridge access door on Double Trouble, they direct
the air upwards creating air flow. Even though they don't blow on the coils they create enough airflow to keep the fridge working
well even on the hottest days. The fridge cools great with the plain wood lining it came from Avion with now!

I'll take some pictures the next time I'm in the USA.

Regards,
Rob M.

-----Original Message-----
From: Mike Miller

There isn't much space in there. You might have to install a smaller refrigerator.

I have always considered the refrigerator as "outside the coach" and do not see the value of insulating the outside wall/skin of the
coach. Seal and insulate the sides, bottom and any where between this space and the "true insides" of the coach. AND provide the
proper clearances of fire proof material to create the "heat chimney" for the propane refer to "breath" properly.

My guess on the color of the inside skin of the body wouldn't make much, if any, difference.... but for a propane refer, the heat in
the "chimney" is needed to get the air to flow properly.

While I know of the value of a propane refer for dry camping, I really like the brand new all electric compressor refer I installed
in my '73. (And not really used.... bought the '78.) Too bad the larger all electric will not fit in either of my Birch's. :(

I might just get out the saw and put my "wood butcher" skills to use! :evil:
--
Mike

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Re: [GMCnet] New Refrigerator [message #142693 is a reply to message #142667] Wed, 07 September 2011 13:14 Go to previous messageGo to next message
ggroth is currently offline  ggroth   United States
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philipswanson wrote on Wed, 07 September 2011 07:01

George,

Hope you were not at the local IHOP yesterday.

Phil Swanson


Thanks Phil, I was not, but our community is in shock; my son just recently completed 27 years in the NNG and knows all the people.


geo groth '73 260 Sequoia Carson City Nevada 89703
Re: [GMCnet] New Refrigerator [message #142695 is a reply to message #142654] Wed, 07 September 2011 13:17 Go to previous messageGo to next message
ggroth is currently offline  ggroth   United States
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Carl S. wrote on Tue, 06 September 2011 19:56

ggroth wrote on Tue, 06 September 2011 19:03

Carl, nice job; perhaps you've read on here about the number of fires connected with propane reefers, like it's not "if" but "when" it occurs. You may want to check that out.


So George, are you saying I just spent $1500.00 and spent two weekends of work just to eventually burn my coach to the ground?


No Carl, just using the collective wisdom of this site to make possibilities known.


geo groth '73 260 Sequoia Carson City Nevada 89703
Re: New Refrigerator [message #142698 is a reply to message #142613] Wed, 07 September 2011 14:07 Go to previous messageGo to next message
Carl S. is currently offline  Carl S.   United States
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I double checked the installation manual and the fridge is rated for 'zero clearance' There is no mention of any requirement to use non combustible materials inside the refrigerator compartment. Yes, I have heard of fires from heat absorption refrigerators. In fact, I believe both Norcold and Dometic have had recalls, in the past, over this issue. If it were just a matter of when a fire would occur, rather than if a fire will occur, there would be many fewer RVs on the road. I have had the use of several RVs in the past, that were equipped with propane refrigerators. I have driven them with the propane fridge on for as long as two to four weeks at a time, with no problems. I plan to install an automatic fire suppression system, just in case, just like I have in my generator compartment and my engine compartment. I believe those areas are much more prone to fire than the propane fridge.

Now on to the fridge it's self: I hooked the gas up yesterday evening and fired (oh the irony!!!) it up. I left it running on LPG for a couple of hours. There was not an excessive amount of heat in the burner or flue ares. I could put my hand on the wall next to the burner area and the wall only felt a little warm to the touch. I switched the power (heat) source over to AC and left it on over night. When I checked it this morning, (on the #6 setting) the refrigerator box was just above 30 degrees and the bottle of water I had put in the freezer was frozen solid. My old AC/DC Norcold did NOT cool down that quickly or get that cold. I'm impressed...and I think we will be very happy with the new unit.


Carl Stouffer '75 ex Palm Beach Tucson, AZ. Chuck Aulgur Reaction Arm Disc Brakes, Quadrabags, 3.70 LSD final drive, Lenzi knuckles/hubs, Dodge Truck 16" X 8" front wheels, Rear American Eagles, Solar battery charging. GMCSJ and GMCMI member
Re: New Refrigerator [message #142708 is a reply to message #142698] Wed, 07 September 2011 17:10 Go to previous messageGo to previous message
hal kading is currently offline  hal kading   United States
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Mike,

Insulating the outside wall will keep some heat out of the frige compartment. The less heat the coils and frige are exposed to the better it will cool.

Hal Kading 78 Buskirk Las Cruces NM
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