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Old 06-27-2012, 10:17 PM   #15
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It seems like it would work great while moving. but once camped it would seem to restrict the air flow of the fan from pushing air in or out, as it can only come through the back.. Any users have any experience with this? I could be wrong.
Fantastic has a video on the net that convinced me. They have a fan on a box with a flapper that shows airflow. They put various covers on the box to show what effect they have. The new Fantastic cover does not affect airflow significantly. Every other cover they show (including the one I have) really knocks flow down.
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Old 06-28-2012, 12:25 AM   #16
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We have two of the maxxair covers over our fantastic vents .. one is black to reduce the light near the bedroom and the other is translucent above the galley. Great airflow rain or shine! The rain solenoid sensor still works of you get cross wind blowing into your AS. The best part is not having to worry about a vent cover vibrating off (over time) while headed down the road. Yes, we've been down that road with a week's worth of rain - duct tape and cardboard repair until we could buy a baking pan to fit over the opening, Now, no worry! The Maxxair vent cover protects the vent cover.
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Old 06-28-2012, 12:38 AM   #17
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You can move air in your trailer through the fan or fans in your bathroom and your range hood. I think these would add drag to your trailer and the black one would look like Darth Vader had his head sticking through a hole in the roof of your trailer.

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Old 06-28-2012, 10:32 PM   #18
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You can move air in your trailer through the fan or fans in your bathroom and your range hood. I think these would add drag to your trailer and the black one would look like Darth Vader had his head sticking through a hole in the roof of your trailer.

Dan
To each his own

... the difference in drag as I was taught in flight school -with regard to external hard points / stores - is negligent as the A/C profile already protrudes into the air stream. In fact, it might even be less drag due to the laminar flow over the Maxxair vent cover prior to the A/C unit. I always kind of liked Darth and my wife likes the darkened / muted sleeping area at night as she is light sensitive (sorry Dan, wife wins on this... must not be alone because many folks buy the inside vent covers for the same reason). We like to also leave the vents partially open while in transit; my range hood vent is specified by AS to remain closed while in motion (ostensibly to prevent damage to the flap) and the bathroom vent is not protected from rain / snow.

Don't knock it until you try it ... we LIKE the Maxxair vent covers!
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Old 06-28-2012, 11:55 PM   #19
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Mefly, I could argue the aerodynamics but point well taken. I like Darth as well. I would have to go with the white ones though. Our fantastic covers are tinted pretty dark so they do block out a lot of the sun, much more than the useless skylite. If I could make that go away I would. It's just an annoying distraction in the ceiling and another area for leaks.

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Old 06-29-2012, 08:56 AM   #20
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Here is the video that convinced me. My current vent cover is the last non-Fantastic cover that they show.
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Old 06-29-2012, 09:26 AM   #21
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thats pretty impressive to watch. I wouldn't have thought it could work so well.. My assumption was what all the others did, restrict air flow. I guess if I ever get one it will be this one. But for right now i'm happy with just the fantastic fan..
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Old 06-29-2012, 09:27 AM   #22
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John,
What color did you buy?
I understand they have black, white and smoke.
I've had my eye on these things but haven't yet pulled the trigger.
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Old 06-29-2012, 09:39 AM   #23
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John,
What color did you buy?
I understand they have black, white and smoke.
I've had my eye on these things but haven't yet pulled the trigger.
I bought white. I might have chosen smoke, but all CW had in stock was 2 white covers.
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Old 06-29-2012, 10:00 AM   #24
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I think the white is a good color, especially in TX.
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Old 06-29-2012, 02:18 PM   #25
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I stand corrected. Seeing the video I like the function, and no restrictions. I wonder how well the smoke would match everything. Or maybe the white would match thr AC shroud better. Mefly, How are they attatched? Any kind of gasket? Does the flange seem sturdy?

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Old 06-29-2012, 02:33 PM   #26
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I assume installation is easy. Remember that is is always up! I think this adds wind resistance and looks hideous! My opinion.
Al
X2.....DW insists it's way to ugly, I have to agree.

In all but extreme downpours, our vent is open just far enough for the fan to run,(out), even then if the sensor gets wet it closes down with no wetty inside.

Now if you don't have the rain sensors you may just have to go ugly and live with it.

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Old 06-29-2012, 02:57 PM   #27
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Mefly, How are they attached? Any kind of gasket? Does the flange seem sturdy?
Dan
No gasket is required. You remove 4 #8 screws that hold the fan down, the second from the front and second from the rear on each side. Four small metal plates are mounted in the same holes using #10 screws. Each plate has a vertical pin that goes through a hole in the flange and is fastened with a washer and a snap pin. Dead easy! The hardest part will be cutting away all the old sealant to get at the slot in the #8 screws. I will probably take a ladder out to the trailer and install them this weekend. Doubt whether it will take nuch more than a half-hour to mount them.

The new vent cover is no taller than the old one, but is a bit wider. The extra width probably helps in the airflow department.
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Old 07-02-2012, 12:58 AM   #28
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Originally Posted by danlehosky View Post
I stand corrected. Seeing the video I like the function, and no restrictions. I wonder how well the smoke would match everything. Or maybe the white would match thr AC shroud better. Mefly, How are they attatched? Any kind of gasket? Does the flange seem sturdy?

Dan
Easy attachment with four, six, or eight stainless pan head screws. Two screws per side penetrate each side of the existing vent frame horizontally; total of four. They attach L-brackets to the existing vent frame. Then two more per side may be added in a vertical manner. I was at first reluctant to drill through the vent frame and into the actual support structure fearing the possibility of a leak. But, given the exposed frontal area, I decided to go ahead and put in the vertical screws as well...with lots of gorilla snot. So, there are a total of eight screws per vent cover for the install ... four (optional) penetrating the vent frame / actual roof and four penetrating just the sides of the existing vertical portion of the frame.

The design allows for no needed gaskets and the units to be hinged over (wing nuts secured with spring angle stainless) for vent cleaning / access. All of the provided hardware is very sturdy stainless and I do not detect any reduction in fan rotational speed with the covers in place; however, we rarely utilize fan speed position 3. The weather has recently been very wet at times (actually record amounts) and we are VERY pleased with the MaxxAir vent covers. It does look a bit odd (or, for us, that is unique) from a distance with one cover black and one cover white... makes our unit easy to spot at a distance. We don't spend much time looking for ugly on the roof; what we have is functional excellence. Any of the larger covers will stand out to some degree, Most of the larger MH are buying the black covers I was told. Smoke would be a nice intermediate option, but was not available when we bought these about one month ago. I was told that the covers are paintable.

We were very impressed with the screened in lower air port. The exposed area appears close to total area when the vent alone is open without the cover. However, due to the "overhang" past the usual vent position, it is very difficult for water to make its way into the vent / air path. The Fantastic Vent does not open quite as far as normal with the MaxxAir installed but that is a good trade off for being able to leave a vent open, drive down the road, and not have to worry about wind buffeting / vibration destroying the open vent or pivot points (as we've had that happen in the past). These are a premium product priced as such and great on our AS.

No I have no connection with this company or RV sales; just a very happy camper.

It is an easy installation that I would encourage you to consider. We are very happy with the MaxxAir covers.

The install is very simple with written and video instructions provided.
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