Compact Cargo Van Rear Ventilation?

[Gopppl]

I'm considering a compact cargo van and would like to avoid installing a roof fan for various reasons. I noticed in the rear bottom, middle and top corners (in the Nissan NV200 at least) there are panels that provide access to the rear corner cavities. Take a look at the attached photo for context.

In this thread, it's confirmed that the bottom vent is used as pressure relief for the back door when closing.
https://www.cheaprvliving.com/forums/showthread.php?tid=33163&highlight=nv200+rear+vent

So my thought is this: if I were to install small computer fans in the other 2 or 4 holes, could I be able to pull air through the van and push it out of the rear bottom corners? 

Does anyone know if there's a vent in the rear floor of the van as well that air can escape? If not, is this area easily accessible to install a floor vent in the cavity space?

Thanks!

 

[highdesertranger]

any vent on the rear of the van or the floor needs to seal 100% while the engine is running. something to keep in mind. highdesertranger

 

[Gopppl]

any vent on the rear of the van or the floor needs to seal 100% while the engine is running.  something to keep in mind.  highdesertranger

Thanks for the response, that makes great sense! Will keep in mind whenever placing/installing a floor vent!

 

[bullfrog]

Heat goes up, so if trying to get rid of hot air vents should be up high and intakes low.

 

[jacqueg]

I also am allergic to holes in my roof.

So far, I've been just fine with an OPOLAR usb fan and rain shields on my front windows, which allow me to leave my windows always cracked. I also have a side window that I leave cracked.

These usb fans are inexpensive and endlessly useful. I'd suggest getting one and seeing whether it provides sufficient ventilation for you before you getting a fixed one in your roof.

 

[nature lover]

You must be using a different USB fan than I am I have Had to and neither of them works well. It just doesn’t move much air. Sorry if I missed it but could you tell us what brand and model you’re using.

 

[jacqueg]

The brand is OPOLAR. It's this one - https://www.amazon.com/OPOLAR-Recha.../B07CP3C2L3/ref=sxts_sxwds-bia-wc-drs-ajax1_0

Usually when I have it on, it is pointed right on me. It's true they don't move a huge amount of air. 

I also leave at least 2 of the three windows in my van cracked open, and often the rear door as well.

 

[Tony's Dream]

How do you deal with bugs when you have your read door open?

 

[Tony's Dream]

I too am very worried about cutting a hole in my roof. Not only because it could leak, that is not my biggest worry. My biggest worry is if I want to trade in my current van to upgrade, what will the mounted ceiling vent do to the value?

 

[Gopppl]

You must be using a different USB fan than I am I have Had to and neither of them works well. It just doesn’t move much air. Sorry if I missed it  but could you tell us what brand and model you’re using.

Here's the link to the fans I bought (I have two sets, for a total of 4 fans). Each set of 2 moves 52 cubic feet of air per minute. With a compact cargo fan, that'd translate into complete van air replacement every 3 minutes. I'm assuming that's on the highest level but even on the lowest level it probably replaces all of the air in the van every 10 to 15 minutes which should be enough. Thoughts?

https://smile.amazon.com/gp/product/B00IJ2J2K0/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

 

[Gopppl]

How do you deal with bugs when you have your read door open?

That's a separate issue. 
I plan to use mosquito nets.

 

[Gopppl]

Heat goes up, so if trying to get rid of hot air vents should be up high and intakes low.

I actually plan to use the van primarily in Winter months. Does this change things?

 

[bullfrog]

If the vents have a rubber flap to prevent air coming in from outside and only allows air to go out when you shut the door then a powered floor vent should work to move air if it is pulling air into the interior but I would be concerned about loosing heat in the winter as it usually collects at in the top foot of the interior. I had considered putting a air tight cabinet with a vent near the ceiling and a powered fan with a vent at the bottom of the cabinet in to move the hot air to the cold floor circulating the air in the interior. Another concern is what kind of heat you use and condensation as you will need some outside air coming in, the flap if there is one may prevent that.