@2ayne, thanks for posting about your build. Couple questions for you if you get a minute:
Thanks and keep up the good work!
No problem man.
There where a couple reasons why I went with the Maxxfan over the fantastic for this built. Iāll list some
comparisons.
-Same 14x14ā mounting footprint for both fans.
-Same CFM
-Both alike models had a 1ā minimum mounting thickness. (Even though our roofs are 1/2ā it still works.)
-The Maxxfan has two metal lifting arms for the lid and a manual lock to hold the cover down where the dometic does not.
-The Maxxfan is 1.5ā lower profile than the Dometic.
-Maxxfan was a lot cheaper when shopping around online.
I have not cut anymore out of my panels. Iām pretty happy with the 2ā chop off each one.
I assume the only reason people want to run the fan with the tent down is because of dogs in the back right?
Donāt forget you canāt drive down the road with the lid/cover up on the fan. Haha.
Oh also, I havenāt had any issues with mine on the highway so far. Probably put 5-7k on the truck since install and been at 90mph a few times and in wind.
I did however do something stupid and glue the locking knob for the fans cover on because it was plastic and kept falling off.
It got stuck to the fan face and then snapped off later when I tried to open it. I contacted Maxxfan and they had the replacement part out to me for free in just a few days. Easy to service these fans in place.
Look like there is glad wrap (or similar) on the fan lid. Why?
Haha. Thatās when I first cut the hole I set it in and snapped a pic.
It still had the shipping protection paper stuff on the top. Haha.
Thanks for the photo! I guess I made the wrong choice buying the Dometic, ha! Itās noticeably taller.
A pretty lengthy fan conversation went on here when we decided to cut roofs a while back. Try starting on
page 25 or so, maybe.
im thinking of offsetting the fan to the right so i can leave one panel out and vent with dogs in back. anyone think of why that may be a bad idea?
Someone did that on the drivers side rear.
Canāt remember who it was thoughā¦ 
BTW. Update on the trip. No condensation with windows cracked in 18-19F first night. Went with one window cracked and one closed the second night in 30-32F and no condensation either. Seems that if the ambient temp and humidity inside and outside the roof/tent are the similar then there is nothing to condensate. Again this was just 1 person. When I had two people and a dog and both windows closed the condensation was unreal, but also dogs will add tons of humidity into a space this small over the course of a night. My two cents is depending on your goals and where you live it can be useful, but in a northern based climate you really wonāt use it much unless you plan on heating the whole place with the windows closed and cooking inside it etc. I use my gfc like I use a floor tent just a little more flexible in what it can do.
This is my plan as well. But, Iām going to use a marine fan with built in solar and battery. My dog stays in a kennel in the bed of the truck and when itās humid - everything is drenched.
Iām planning on fitting one of these: https://www.amazon.com/gp/product/B00407CK5W/ref=ppx_yo_dt_b_asin_title_o03_s00?ie=UTF8&psc=1
Even solo camping with the windows cracked leads to a lot of condensation for me (tent fabric v2). Itās not unmanageable - I wipe the entire interior down with a microfibre cloth when I wake up - but itād be nice to reduce it.
Why that one and not the Maxxfan like the rest of us did? Just curious.
I bought the Dometic fan and found it gigantic. I figured I can try this first and if it works, Iāll stick with it. If it does, Iāll enlarge the hole and put a Maxx fan in its place. I prefer the smaller, simpler footprint.
I think that the Maxx Fan is overkill.
If you can use a 6" hole saw it would make the installation easy.
A 6" hole weakens the roof a lot less than a much larger square opening. When itās shut the leading edge is sloped thereby less likely to get hung up on an obstruction plus not likely to blow open inadvertently. More aerodynamic profile too.
100 CFM < 900 CFM 
Not sure youāre going to notice enough air movement with one of those especially if youāre trying to cool off the tent in the summer months like I do. Iāve been running the Maxxair for 5 months now. No issues. Hasnāt blown open going 100 or anything. Roof doesnāt seem to mind at all either.
Give it a try though. Whatās to lose? Like you said you can always make the cutout 14X14ā if you find itās not enough fan for you.
Iām curious to see how it works out for ya.
that is awesome, putting that on my list of mods when mine is finally done
@2ayne, is this the model you got? https://www.etrailer.com/RV-Vents-and-Fans/Maxxair/MA00-04401M.html
I noticed in your post that you said it only extends 1.5" above the roofline, but for some reason the shortest I could find was 2 7/8".
