Archive - Aluminium Camper Forum

Camplite => Camplite Mods / Upgrades => Topic started by: tincan on March 06, 2016, 09:29:14 AM

Title: New style vent
Post by: tincan on March 06, 2016, 09:29:14 AM
Anyone have one of these installed?  Tried one at a dealer or show?

[a href="http://www.campingworld.com/shopping/item/12-volt-ez-breeze-vent-fan/84052"]New Fantastic EZ Breeze Vent[/a]

Or here

[a href="http://www.fantasticvent.com/fan-tastic-vent-s-retail-ez-breeze-fan.html"]At Fantastic site[/a]

I would be interested in one of these over my bed.  I hate the idea of leaving and having a vent malfunction when away.  You understand, there is nothing like coming back to camp and finding you bed soaked. 


Title: New style vent
Post by: daplumbr on March 06, 2016, 10:00:12 AM
Those look pretty nifty and very low profile. I solved the potential for accidental vent leaks by installing the covers below. Very simple installation and cheap. 

http://www.campingworld.com/shopping/item/maxxair-i-original-translucent-white-roof-vent-cover/1733


Title: New style vent
Post by: charliem on March 06, 2016, 11:35:11 AM
[font size="3"]Airflow=350cfm vs 900+ at high speed for the standard FanTastic. Certainly adequate at night, but a limit on hot days. The UltraBreeze covers also work well.

Wet bed = bad news  >:(
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Title: New style vent
Post by: tincan on March 06, 2016, 02:44:57 PM
[quote timestamp="1457278511" author="@charliem" source="/post/19258/thread"][font size="3"]Airflow=350cfm vs 900+ at high speed for the standard FanTastic. Certainly adequate at night, but a limit on hot days. The UltraBreeze covers also work well.

Wet bed = bad news  >:(  
[/font][/quote]I look at it like this;  it is only 1 of 3 fans.  I figure I am giving up a few CFM for piece of mind , so on one fan I am ok.  Realistically if I have 1 fan on high at 900 CFM and one at 350, and one turned off, I am still probably changing the entire volume of camper air every 20 seconds or so.

7 feet wide, 21 feet long, 8 feet high = 1176 cubic feet (CF) of air in the camper. 

Lets round this number up to 1200 CF, so at 1250 CFM (2 fans) I got the camper covered every minute. 

If I only run the EZ Breeze, I get total exchange every 3.15 minutes.  More than enough to keep the camper ventilated on a mild muggy day.

Keep in mind I did not account for the volume occupied by cabinets, Bed, Etc.

Hot, full sun camping spots, A/C BABY!!!  LOL
Title: New style vent
Post by: charliem on March 06, 2016, 05:57:58 PM
[font size="3"]TC,

Roger that, I agree. We seldom use the vent over the bed at night because Wife likes to sleep late so we cover the vent. Daytime it's nice to open the windows and turn on all three FanTastics. I can do wind tunnel research!

But when it gets hot  the A/C comes on if connected. If it's hot and we're not hooked up we (I) chose the wrong campsite  :-/  .
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Title: New style vent
Post by: peislander on March 06, 2016, 07:06:43 PM
If any of us are ever inclined, we can use our Fan-Tastic Vents (my CL11FDB has two) as a tool to find potential leaks. The vents can be used to positively pressurize the trailer. Outside we can then use soapy water to investigate for air leakage points. Wherever there's air leakage the soapy water will bubble up. This method can identify where sealants or weatherstripping need subsequent attention. I know this method is used by some rv manufacturers to look for potential leaks as part of the quality control inspections. A video I saw showed them pressurizing a motorhome using a fan insert fitted to the door opening. I see no reason why the Fan-Tastic Vents couldn't also build sufficient pressure.

One (perhaps common sense) thing to understand about leaks is they require three things. They need a hole, they need water, and they need a pressure difference. You can have the hole & water but never have a leak if there is no pressure difference to draw the water in. The implication of all this, perhaps coming in handy someday, is your vents can prevent or bring on a leak depending on if the vents are positively or negatively pressurizing the trailer. If you ever find a drip know that turning on the vent to positively pressurize the trailer will very likely stop the leak. Of course you might then be getting water sucked in by the vent. In my case I could use the vent in the wet bath to positively pressurize the trailer as I wouldn't care if that vent sucked in some H2O. Thankfully I haven't had a leak but if I do I know what to do.  :)
Title: New style vent
Post by: peislander on March 07, 2016, 07:43:33 PM
Here's another style of vent I've considered...

In recent years I've been noticing these roof-mounted rotary wind-powered vents on service vehicles. With a bit of googling I've found they appear to be a great mod for a trailer or RV if you are brave enough to cut the required 3.86" diameter hole in your roof required for the TCX-2 Model by Flettner.  :o


[video size="medium" src="https://youtu.be/B6Z5flELoSs"][/video]

They were invented in the 1920s and use the 'magnus effect'. The design of the ventilators have been perfected for vehicle ventilation by British company >>[a href="http://www.flettner.co.uk/products/flettner-tcx-2/"]Flettner Ventilation[/a]<< and are sold worldwide. There is no motor. As the ventilator rotates in the wind it draws air out of the vehicle. Typically used to ventilate service vehicles like vans or ambulances they keep the interiors from getting overheated. Fresh air is good too! You do have to have a source of make up air which can be having a traditional vent cracked a little open.

What do you think? Now you too might start noticing these on service vehicles. They tend to be on the higher end ones like Sprinter vans with wraps rather than beat-up Chevy cargo vans.