6.7 Frig Tinkering ideas? - Page 6 - Escape Trailer Owners Community

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Old 11-17-2014, 07:12 PM   #51
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Originally Posted by gbaglo View Post
I don't think we yet know if this "solution" is effective.
What I do know is that somehow this thread on table slides has ended up behind the fridge.
We'll see in February. I can move back to my refrig thread. I started both so it's all good with me.
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Old 11-18-2014, 01:14 AM   #52
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Welcome back to the Tinkerer's corner. "Thank you" to the site team for bringing the other posts over here!


From page one, the inspiration for my work on the frig:


http://www.dometicrvcentre.com.au/do...nager/item/421


It looks to me that "Gas flue kit: Ref No: 3776" (from lower left page one) would work great on the side of our trailers? I said in an earlier post that I routed the flue 'up' to avoid going through the wooden baffle that ETI had installed.


Checking out page 2 you will see the options, there are more in other documents but this is a good overview. Notice they all route the hot flue gases out of the trailer.


I read somewhere else that by routing the flue gases out there is less chance they can be pulled into the living area of the trailer. I remember folks saying that the maxair was pulling air into the living area ... that could pull propane leaks and propane flue gases in too.


I'll get some more pictures ready. I'm doing trim now and tossing in an inverter so the new microwave (under the refrig) will work when we don't have an AC hookup.


Very interested in hearing how the Nova Kool works out. I just needed to do something for when we head south in February.


Mel
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Old 11-18-2014, 03:55 AM   #53
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Mel,
I'm wondering if the bottom locale of the intake will not have the same effect as the open MaxxFan on the roof has, you may have a reverse pressure situation and the draw may be affected. Perhaps if you turned the vent cover forward to scoop air into the intake while moving?
Then again the faster you go the more air, do you want that to happen? Or is it already facing forward, hard to tell from the pictures?
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Old 11-18-2014, 12:19 PM   #54
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Wow, some very useful info. The first thing that caught my eye was not only the use of the TPX extension(s) but the comment about the height (up to the vent). I'll be exploring that situation; extending and insulating the exhaust.

Thanks for posting the link.

Ron
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Old 11-18-2014, 01:19 PM   #55
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Originally Posted by cpaharley2008 View Post
Mel,
I'm wondering if the bottom locale of the intake will not have the same effect as the open MaxxFan on the roof has, you may have a reverse pressure situation and the draw may be affected. Perhaps if you turned the vent cover forward to scoop air into the intake while moving?
Then again the faster you go the more air, do you want that to happen? Or is it already facing forward, hard to tell from the pictures?
See my 'before' and 'after' pictures below. The vent in the 'after' picture has a garbage bag over it to block rain and wind.

I don't think I have the air leakage problem but other folks had mentioned it in their posts. My installation has a baffle (seen above the AC plug) and sealing around the refrigerator installed by ETI.

People should look in through the lower vent and see what they have for sealing the back area from the trailer interior.

I replaced the spray foam installed by ETI with foam tape against the refrig bottom and silicon seal around the edges. Notice in the left middle of the picture the water stain on the bottom of the wood near the vent. I also coated the wood with an oil base sealer.
Attached Images
File Type: jpg lower vent as done by ETI pe.jpg (268.3 KB, 32 views)
File Type: jpg vent area with fan box and reseal pe.jpg (150.3 KB, 37 views)
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Old 11-18-2014, 01:45 PM   #56
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Originally Posted by Ron in BC View Post
Wow, some very useful info. The first thing that caught my eye was not only the use of the TPX extension(s) but the comment about the height (up to the vent). I'll be exploring that situation; extending and insulating the exhaust.

Thanks for posting the link.

Ron
I've attached 3 pictures of the 'chimney'. One shows the lower mount. The second shows how I aligned it for the extended flue to slide in without catching on the rubber seal. And the top view with the flue as a red line.

The extended flue slides into the 4" aluminum 90 degree dryer vent chimney. The 90 allows you to rotate it so the angle is good. I didn't want to cut a hole in the upper screen but might in the future if needed.

I measured hottest flue temps at 126F, low enough to not be a fire hazard with wood so close. I also sealed the wood to protect it from moisture but also hoping the air will flow smoother.

Interested in all other ideas, this was built mostly with things I found in my shop ...

Mel
Attached Images
File Type: jpg 4 inch chimney mount pe.jpg (179.8 KB, 18 views)
File Type: jpg chimney trimmed for extended flue to slide in pe.jpg (171.3 KB, 19 views)
File Type: jpg Chimney top with flue red pe.jpg (168.5 KB, 15 views)
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Old 11-18-2014, 01:56 PM   #57
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Originally Posted by rbryan4 View Post
Nice work Mel. The before and after photos of the fridge back really clarify the problem. Interesting that ETI does not insulate the fridge compartment. I wonder if they'd add it?
Thank you for your comments. I simply folded over the reflective insulation making a double layer. I taped the edges and stapled it to the walls. On the top I wedged in a couple pieces of old plastic pipe to keep it up.

Mel
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File Type: jpg insulation inside frig box looking up pe.jpg (381.0 KB, 18 views)
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Old 11-18-2014, 01:56 PM   #58
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MEL, I as referring to your new intake below the trailer with the scoop turned either forward or reverse, that is what I was referring to.
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Old 11-18-2014, 02:15 PM   #59
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Originally Posted by Klem View Post

this was built mostly with things I found in my shop ...

Mel
The stuff Myron calls "junk too good to throw out" and I call "resource materials"

Getting rid of 126 degree waste heat has to be a benefit. Great work and good solution for hooking up the flue.

Ron
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Old 11-18-2014, 02:18 PM   #60
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Originally Posted by cpaharley2008 View Post
MEL, I as referring to your new intake below the trailer with the scoop turned either forward or reverse, that is what I was referring to.
Duhh, sorry. I appreciate the questions/comments as I would like to optimize these mods before heading south 8)

I was happy to see there is a spot where it is protected by a frame rail in front and on the wheel side. I also got a stainless steel bowl from Goodwill and cut it so splash etc. would have less chance of getting in.

Also the fan box is up in the refrig area so it would not pull in under trailer dust etc. If you look close you'll see it's plastic dryer vent tube and I added a screen too.

At first I was planning to leave it 'open' as possible but with the side vent just being a bit small the purpose of this pickup is to 'add' venting, not be 'the' vent.

Is that what you were asking? Mel
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File Type: jpg 3 Cold air pickup.jpg (162.9 KB, 34 views)
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