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Old 10-29-2020, 02:42 AM   #1
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Model: 25.2 Axis
State: Arizona
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THOR #3471
AC upgrade

Anyone tried this Name:  IMG_4301.JPG
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Old 10-29-2020, 03:53 AM   #2
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Quote:
Originally Posted by Hugh.vines@att.net View Post
Anyone try this ac upgradeAttachment 26939
Perhaps a bigger picture, a name and/or a link would allow us to know what you are trying to discuss.
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Old 10-29-2020, 06:03 AM   #3
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I believe he's referencing this;

https://rvairflow.com/?gclid=Cj0KCQj...4aAo-SEALw_wcB
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Old 10-29-2020, 05:35 PM   #4
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Model: challenger 37FH
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Save your money,I removed the ac covers from the ceiling and used a flashlight to closely inspect for gaps on intake side and connections to ceiling duct runners and used foil tape to seal all gaps. Made a BIG difference . I also removed the vent covers at the last vents in front and rear ac runs ,they continue past the last vent and dump into front cap,same in the rear,so I used spray foam with the long straw and with a flashlight and vent cover off sprayed back and forth to build a wall to block off the rectangular duct just past each of the last vents front and rear,MUCH more air flow at those last vents,instead of air continuing past vents into front and rear caps foam acts like a dam and forces air out of last ducts HUGE difference . I did the same thing wit heat ducts in the floor .
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Old 10-29-2020, 06:41 PM   #5
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I like the concept and plan to look into it further. I like the idea of reducing noise but need to check my system before I can say anymore.
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Old 10-29-2020, 07:01 PM   #6
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Here is a review on another website. If he is correct, 5.6db decrease in sound and an average of 29% increase to the vents.


https://www.forestriverforums.com/fo...-a-208666.html
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Old 10-29-2020, 07:07 PM   #7
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Model: Tiffin Wayfarer 24 BW
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Well that sounds potentially hopeful...
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Old 10-29-2020, 07:16 PM   #8
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Its all about smooth air flow and less turbulence..
Just like port-matching your intake to your heads.....
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Old 11-11-2020, 08:18 PM   #9
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Model: Miramar 37.1
State: Florida
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We own a 2017 Miramar 37.1 and after speaking with the owner Richard, he explained that even though he didn't have actual data on most class A units, it should work on our Mach ac units. I ordered 1 to test out the front living area since I can say it's been the cause of many arguments with momma bear. I measured the supply from each duct vent before and after and was amazed of the increase in air circulation within the space. My measurements were in MPH since I couldn't measure cfm with my gauge. It went from 4mph to about 9mph consistently throughout the 6 vents. Needless to say I ordered the second one.
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Old 11-11-2020, 08:33 PM   #10
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Thanks for telling us about your experience with them.
Now they're on my "Wish-List".
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Old 11-12-2020, 02:12 AM   #11
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Model: VEGAS 27.7
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I purchased one and installed in my 2018 Vega 27.7. I will say the sound difference alone is worth the change. Also in the Living area it does not get as cold as it did. Which makes it more comfortable.
Previously it would be cold in the Living area, but to warm in the sleeping area. Both areas are more comfortable.
Oh did I mention the sound difference in the Living area it wonderful. I can actually watch TV without have to adjust sound based on the A/C noise. WONDERFUL.
Buy It!
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Old 11-17-2020, 03:37 AM   #12
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I am all for purchasing products from small companies & entrepreneurs. If it wasn’t for them, many of the things and quality control within some products that we’ve come to expect wouldn’t happen. I’m now known as “that guy” who tries all sorts of things way before most others have even heard of it. I try to share my knowledge and feedback on the products and mods as much as I can with anybody who’d listen.

But $180 for a styrofoam shape and a thin metal collar per A/C unit is more than a bit much in my opinion. Like a previous poster mentioned, I too spent a lot of time optimizing the AC ducts, taping over gaps, and insulating the actual unit on the roof and had really strong gains. I posted all my details elsewhere, and there’s a really good other thread about this as well.

Even with all that, I thought I could use a quieter solution, as it generally wakes up everybody if it starts up in the middle of the night. My current solution is to leave it running in fan only-low speed mode, and have a constant white noise going. Not optimal, but works for us. I’d like better, but I can’t see spending $400 for that.

So...off to the internet I go! Found a homemade solution that I plan on trying. It’s ugly as hell, but you’ll never see it as it’s hidden inside the AC cavity. It’s also probably not quite as effective at sound dampening, and not as efficient at directing air flow either. But I figure there would have to be some improvement, and you’re out only the cost of a foam board, AC tape, and your time.

I will be installing this some time this winter while letting the generator charge up the batteries during storage maintenance. I’ll try to take some pictures and time myself to let y’all know what you might get yourself into if you try this.

But, as you’ll see in the link below, this appears to be one of the easier mods for RV’ers listed in this awesome forum.

Cheers!

https://youtu.be/3Vhv_b-1zAk
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Old 11-17-2020, 03:52 AM   #13
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Model: 2018 24.1 AXISSIXxSIX
State: Arizona
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For the money I wouldnt be bothered to do all the work to make one.
A prefit, fit, adjust fit retrofit, diddle Jacking around....

$10 an hour is what it would come to.


I'll buy one when it's time.
I don't have any complaint about how the ac works now, but I can always use better/quieter.
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Below is a link to most of my modifications either accomplished or pending.
https://www.thorforums.com/forums/f2...n-18996-3.html

Click on my pictures then click the pop-up for a full screen zoomable picture.
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