Refrigerator vent fan

popeyemth wrote:

bob_nestor wrote:
I went thru a similar effort on my Class B which doesn't have a roof vent. My solution was similar though and I documented my findings, observations and method including where to obtains parts, etc. If this might be helpful it can be found at:

Chillin with Bob

MUCH better write up than mine! Puts my one finger typing on this iPhone to shame and the depth of research is awesome .
My eBay snap switch and fans are much simpler and quite a lot cheaper than your sophisticated set up and I suspect work as well.
Thanks,Mike

Thanks Mike! I like your temperature switch much better then mine. I've had problems with the ones I use. They seem to be ultra sensitive to voltage changes and tend to burn themselves up. On my fan selection I was trying to get the best airflow with the lowest power use since I like to dry camp. You can find cheaper fans with higher CFM, but the pressure of the air column produced needs to be as high as possible. The CFM ratings don;'t tell the whole story since that is measured with minimum airflow resistance. Put them behind a screen or something that disrupts the airflow and the actual CFM can be quite a bit lower.