Class B Van Windows

With a fantastic fan venting out only need to crack open a window to create a breeze in van. The smaller the opening the better.

Roadtrek offers a window screen option. Open one window - even just a crack and turn on the roof Fantastic Fan to exhaust and the air flows through the inside of the B. There is really no ventilation problem at all. The Fantastic Fan is very powerful and has great air draw.

These are a little pricey to purchase, but they are quality. They really allow a breeze to blow through the motorhome Clicky to Skreenz.

One could make one fairly easy, but would be best to have a pattern. Can be left in place while driving, easy to slip on or off, and does provide a small amount of privacy.

There are battery operated fans by O2Cool that use 8 D cells, a 12 volt power, and maybe a rechargable battery. Those are not as powerful as the Fantastic Fan, but for something that is battery operated, they do move a good amount of air.

In addition to what others have said, I have an aluminum faced tarp I bungee over the van especially the front windows if I cant drive it into deep shade. It helps to position the van so the front windows are not facing the sun in summer. In addition I do have a small clamp on fan that helps a lot just to get air moving. Otherwise, a small, lite weight screen room (Woodlands Screen House)to get outside and do cooking, even sleeping if necessary.

I'd go for a 6000 model Fantastic Fan. It not just has a thermostat, but a rain sensor. It also has a variable speed control, and can be set to move air in either direction. There is a 7000 model, but it isn't 12 volt, but requires a full 120 VAC to function.

Some vans have screens. I know that SMB has it as an option, as well as Roadtrek. That way, the rear doors or side sliding door can be left open for air, but still keep bugs at bay.

"Seems like ventilation and air flow would be really poor with this tiny windows."

No problem at all! The Fantastic Fan creates all the ventilation that you could want, usually on the lowest speed. Then there is a thermostatic that will shut it off when you're asleep rather that getting too cold.

Bud

The small windows are no problem with ventilation, especially if you open the roof vent. In addition, you should consider getting some mosquito netting and placing it over the cab windows and then rolling the window down plus get netting for the rear window (if it opens) to provide additional ventilation. And then you can always hang netting across the side door opening to provide ventilation w/o mosquitos and flies. There have been many responses over the past few years on screening and other options for getting good ventilation. Using screening on the PW or RT is much less expensive than replacing windows. Having the ceiling vent fan on, or at least opening the vent helps a lot with pulling cool air into the RV from outside.