HOW TO KEEP YOUR RV COOL | RV AC Air Flow for Under $20! DIY RV AC Mod for Cooler, Quieter Air Flow.

Increase the airflow of your RV AC with this easy, cheap RV AC DIY mod. We increased the air flow in our Jayco Greyhawk Class C RV, gaining more than double the output! As a bonus, the AC is now quieter too! This DIY modification can be done for any Coleman Mach air conditioner for under $20!
Here's a link to the paper template:
drive.google.com/file/d/19GVw...
(Download the png file and then print it.)
If you want to get fancy and 3D print the baffles, here's the Thingiverse link to 3D design:
www.thingiverse.com/thing:466...
Here's the Amazon link to the RV Airflow Devices in case you want to buy a kit instead:
amzn.to/4621BLD
If you like this video, PLEASE SUBSCRIBE our KZbin channel. You can also connect with us here:
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Music Credits:
"Batty McFadden" and "Local Forecast"
by Kevin MacLeod (incompetech.com)
CC-BY-3.0
Video: How to keep your RV cool | RV AC Air Flow for Under $20! DIY RV AC Mod for Cooler, Quieter Air Flow.
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[@ClassCBroads]

Here's a link to our blog with the paper template: www.classcbroads.com/blog/rv-ac-air-flow-mod

[@VegasJPH]

Chuckled at the channel name, instant thumbs up when I saw you measured for before / after airflow AND noise; PLUS the curved baffles for smoother (which makes quieter) air flowing. I've watched a couple RV airflow hack vids now & this is the 1st that gave an airflow difference. Well done!

[@ClassCBroads]

Hey, thanks for the feedback. Much appreciated! Glad you like data as much as we do!

[@markb2881]

Good idea doing the before and after airflow measurements. Never would have guessed it would be that dramatic of an improvement

[@tmc1473]

You're right. No need to spend hundreds of dollars to do this. I have a different idea, but the same aspect. Thank you. Thank you thank you.

[@ClassCBroads]

You are welcome. Good luck with the project. Stay cool....

[@miscellaneousHandle]

Great job! I 3D printed Brian's stuff and used it. It's amazing what an improvement it is!

[@ClassCBroads]

Glad you liked the video. Isn't it awesome how much more cool air you get! :)

[@gillesboisvenu843]

Great work... I will definitely look into doing the same. Thanks for taking the time to create the video. Safe travels! :)

[@ClassCBroads]

Thanks, you too! Let us know if you decide to make the mod and how it worked for you. :)

[@wareintheworldrv9108]

As a 31F owner, those results were amazing! Thanks so much.

[@ClassCBroads]

You are welcome! Let us know if you try it out on your Greyhawk. It's been a wonderful RV for us, btw.

[@williambynack4752]

Fantastic job!! You have given me the confidence to do it myself. Safe travels.

[@ClassCBroads]

Thank you! Stay cool...

[@sanddogg660]

nicely done ladies I'm totally doing this to my 2021 Seneca

[@ClassCBroads]

Thanks! Let us know how it works for you.

[@apachepaul]

Nice tape work! I'm doing it!

[@ClassCBroads]

Ha, thanks! Are you going to use a 3d printer or do the foam board route? Either way, let me know how it turns out for you and thanks for watching!

[@randallsguaranteedsold6361]

Good job! Thx for posting

[@ClassCBroads]

You are welcome! Thanks for watching!

[@deanc3362]

You gals are a hoot, well done!

[@ClassCBroads]

Woot! Woot! Thank you for watching!

[@georgeramsey2827]

Great video! Its amazing how unskilled the original installation looked.

[@ClassCBroads]

Thanks George! I was definitely surprised when I opened everything up and saw a mess.

[@kimhastings2148]

Awesome video thx 👍

[@ClassCBroads]

Glad you enjoyed it!

[@wayback1000]

Great video! Based on another video I saw several months ago, I did this. I used straight foam board for the corners angled at 45* instead of curves. I did not do the middle section as I did not want to take the metal frame down. I’m reconsidering that now. Had not seen the curved design, but makes sense. Even though I used straight pieces and no bottom “air director” , I still lowered my decibels from 66 to 60. In creased flow by at least 50% though I wasn’t able to measure that. I have a Dometic Brisk II, 15k . As I said, I’ll probably redo mine using your design. Thanks for sharing this.

[@ClassCBroads]

Thanks for watching and the feedback. If you end up redoing the mod, we would be interested in knowing how much it improves your experience.

[@robertdl]

I subscribed just because I loved your intro...lowered by heart rate just by listening:)

[@ClassCBroads]

Funny! Based on some feedback, we recently revised the intro to speed up the song and make it a little peppier. You can catch the whole (slower) song here: kzbin.info/www/bejne/jJ3CnYyAbb-hb68 And THANK YOU for subscribing!

[@adame924]

I like the idea of making the corner piece out of a solid piece of foam rather than just a piece of foam put in at an angle. Your way removes all of the sharp angles which could create the best flow. Another thing that helped me a great was to pop off the vent covers and seal the ductwork to the ceiling and the vents to the duct work. In my rig the vents were just pushed into a round hole in the duct and not sealed at all. Also at the end of the duct it went a good foot past the last vent and was just pinched to seal off the end. I added a piece of curved foam and taped it so the air was all directed down through the last vent on the line.

[@ClassCBroads]

Thanks for the reply, Adam! I completely agree that checking out the ducts is the next step in making your A/C work more efficiently. After I finished this project I noticed that our front A/C seemed to be sending more air to the bedroom and that our bedroom A/C was sending more air to the front. I don't like to run both at night so I put some foam in the racetrack to only allow air from the bedroom A/C to flow out the ducts of the bedroom and bathroom. Now the front A/C only cools the front of the RV and the bedroom A/C only cools the back. There are so many opportunities to make these systems work better!

[@markteel8346]

That's called an air cushion. It doesn't hurt to go past the vent. Actually makes it a little quieter, but doesn't hurt to stop at the vent either

[@deanhockenberry9268]

Just an FYI from a career automotive technician, every time you pull the trigger switch on your tools the switch is wearing out quicker. I would recommend setting a slower speed and holding the trigger until the screw is removed or tightened. Just a thought.

[@ClassCBroads]

Thanks for the tip! We always appreciate constructive feedback!

[@dannyschieffler9658]

Y’all did a great job! Now I need to find Brian Miller’s measurements.

[@ClassCBroads]

Hey Danny- The measurements are in the paper template that is linked in the description. If you are going to 3d print it there is also a link to the Thingiverse design created by Brian Miller. Thanks for watching!

[@markteel8346]

nice job, i would have put the diverter all the way to the opening from the fan but this is quite an improvement and will probably work just as well

[@ClassCBroads]

That's a good idea. Let us know how it works for ya!

[@ralphbell1786]

Those improvement numbers are impressive, good job! I'm wondering if carving the center baffle out of foam might also improve the sound dampening(?).

[@ClassCBroads]

Maybe. Let us know if you try it that way!

[@VAMPIREBRIAN]

just a note* A bread knife works alot better!and with the same concept on a budget i used 1 litre an 2 litre bottles and tape

[@ClassCBroads]

Hey, those are great ideas. Nothing like recycling!

[@jmw1480]

Thank you for the video! I think you said you had two A/C units. Did you have to mod both?

[@ClassCBroads]

Yes, we did the mod to both. Well worth it...

[@milkshake8252]

Did this mod last week, definitely increases airflow through the vents, unfortunately rv acts just suck and can't keep up with the 110 degree las vegas heat

[@ClassCBroads]

110 degrees? Wow, I've always heard that the max relief you can get is a 20 degree differential, i.e., the best you can do is around 90 degress inside. Good luck, and buy some cold beer.

[@anthonylaurennava1006]

Do you lose the ability to dump air from the main vent?

[@ClassCBroads]

That is correct. We seldom used our "dump" so we think it was worth it.

[@RonLaRo]

Wow awesome Job, can you do mine :)

[@commanderfootball]

That's all fine and dandy, but down south July, august you can't have the just running through vents, it will warm up by the time it gets out . Unless you have heavy duty insulated camper, I'm looking into bigger a/c unit, calling hvac company after thus summer

[@ClassCBroads]

Let us know how it goes. And good luck!

[@commanderfootball]

@ClassCBroads I tried something different, I went up to the roof, I had one of thise electric blankets from Walmart, just took blanket wrapped my a/c over the cover, thise car window shades over the too, and my sunshade cloth, just half the a/c , so far extra cold

[@ClassCBroads]

@@commanderfootball I'm not quite tracking what you did, but as long as it works, that's awesome!

[@goofe.washington953]

I live in the Deep South myself, and whether you get a bigger BTU unit or not, increased airflow from an aerodynamic improvement will help IMMENSELY. Do-it-yourself or installing the RV Airflow kit ($170), the results are dramatic - and I mean DRAMATIC.

[@commanderfootball]

Mr. Cool is coming

[@gladlisa1]

idea was good.... to long of a video may be speeding up after explaining the process , and not video the whole process will get you lots of more viewings

[@ClassCBroads]

Hey, thanks for your feedback. We do appreciate the input!