I need a low profile roof vent. Do they exist?

[bee]

Nope doesn't have to be on the roof, do you happen to have pictures of your setup and or links to what vent you are talking about?

 

[dieselcruiserhead]

This one is about as low profile as the one you posted. I installed / have been using for a few years in our travel trailer. Works great and very low draw..

http://www.campingworld.com/shopping/item/create-a-breeze-fan/19708

 

[Abitibi]

At your service! But you owe me! Lol

Cheers
Mr. D

 

[pappawheely]

This looks low profile and the price is right

http://www.amazon.com/Round-Solar-Boats-Sheds-house/dp/B001C8B8D2/ref=pd_sim_lg_3

 

[Stumpalump]

Swap your fantastic fan lid with a clear one. It should let enough light thru.
http://www.fantasticvent.com/faq/knowledge_base/manuals/manuals_assests/OEM cat.pdf

 

[bee]

Abitibi, thanks for the photo, it looks better then I thought when painted to match. why did you mount it on the back door instead of the roof?


pappawheely, those solar fans just don't move the air I am looking for, but yep it is low profile.

 

[Abitibi]

Sorry bee, not my van (I got an Ambo...), just found the pics for you...

Cheers
Mr. D


Sent from my iPorn using Tapatalk

 

[Entropy]

Why not get a vent with a manual opener (like a fantastic model 4000) and only open it four inches?

 

[failsafefabrication]

Re lo pro vent

I use a 9" x 14" hongs rv roof vent: manual open and it is stable open as little as 1/2" and can open to 6" for power venting I have a 12v computer fan; chosen for noise control, this one is a 120 mm with 24 cfm flow but only makes 42 dB of noise. Mounting for the fan was accomplished with a small aluminum frame that borders the fan and mounts between the vent screen and interior trim ring. I think the vents run about $20 or so...

 

[Amk22]

Are people using a motorized fan vent or a natural one? I am having trouble finding a low profile solar vent - I'm concerned about both the shadow as was mentioned on here as well as the power draw as my rig will run entirely on solar. What would the drawback be of using just a natural, non motorized vent.

 

[Maninga]

I bought one of these for my camper. Should fit the bill

http://wheelsnboats.com.au/Marine-S...c-exhaust-fan-for-boat-daynight-P3164279.aspx

 

[SBaircraft]

I just bought a fantastic fan, which works fine, but I just realized that it will cast a shadow on the solar panels that I will be getting in the future.

I need like a maximum open height of about 4"

Has anyone ever modded one to lift the lid straight up instead of tilting?

For reduced profile, consider:

A) There is a low profile base available for the Fantastic fans. http://rvvent.com/images/hplpbases.jpg

B) They also have flat lids available. http://rvvent.com/images/lids.jpg

I configured my Fantastic fan this way for the purpose of stealth but it will also slightly reduce shadows.

I honestly wouldn't worry about the shadow problem. Your vent won't cast shadows when the sun is high and the solar panels are producing maximum power. When the sun is low and the vent casts larger shadows, the solar panels won't be effective anyways; the shadow penalty is probably very small.

Also, avoid installing a smaller fan to reduce shadows. Assuming the same flow rate, a smaller diameter fan has to impart a larger change in velocity. Since much of the drag varies with velocity^2, the smaller fan is less efficient.