Do you vent in below freezing temperatures?

[Scout]

I vent 24/7.  As john notes, in subfreezing temps I just run it on the lowest (10%) speed.  I also pull air in rather than push out in cold, believing (justifiably or otherwise) that this preserves some of the heat at ceiling.

I'll have to try this. I guess instead of the air coming through the front windows and going out the vent it will just reverse. 
My fan is right above my bed so it might just blow cold air on me all night.
Last summer when i was really hot blowing in seemed to keep me cooler than blowing out. I'll try it though so I can see if it makes a difference.

 

[Feelit]

For an AAV to work, it can't be the only vent in the system, so if your roof vent is frozen closed, it probably wouldn't help. As long as you can slope a connecting pipe between the two vents so it can drain, and you have the room to do it, you could connect them together if you wished. It may also be the height or location of the vent that causes the smell.

 

[abnorm]

Feelit............….It's not an AAV...…………..it's a 14 inch x 14 inch hole in the roof of a vehicle with an installed fan...……

You DO KNOW this is a US based website dealing with living in your vehicle...……..some of your answers are very strange...…


Introduce yourself in the Newcomers Section

 

[John61CT]

yah no one here has a freezing problem, nor any smells!

the "other vent" can be anywhere, and passive

drains?

AAV wut?

 

[B and C]

Crack a front window and crack the roof vent. No fan needed. Convection will cause air exchange. Running a fan will increase the air exchange to a point where you will lose all the heat you're generating.

 

[frater secessus]

AAV wut?

I think it's air admittance valve in this context.  Not a term a was previously aware of