Adding vent fans to fridge
I'm wondering if anyone has any photos of adding cooling fans to the back of my Rv fridge I picked up a few from Walmart for 5 dollars each as a trial and they seem to work but they are too big for th...
Forum Discussion
12v computer fans work well for this. They pull very little power and you only need a few to get an effective flow. You can pull power off of the 12v feed of the fridge to power the fans.
If you want to automate the fans then you can do this with a cheap NO (normally open) temperature switch. A NO temperature switch is open (disconnected) until it reaches a certain temperature. Once that temperature has been hit it closes (connects power). You can wire the switch so that it detects the ambient temperature and switches on when it's hot outside.
The fans use very little power, but if conservation of power is a concern then you can attach the switch to the fridge's burner flue housing. When the fridge is running the burner will heat up the flue housing which will close the switch. This will then call the fans to run. Doing it this way the fans will only run when the fridge is actively cooling.
If you want to automate the fans then you can do this with a cheap NO (normally open) temperature switch. A NO temperature switch is open (disconnected) until it reaches a certain temperature. Once that temperature has been hit it closes (connects power). You can wire the switch so that it detects the ambient temperature and switches on when it's hot outside.
The fans use very little power, but if conservation of power is a concern then you can attach the switch to the fridge's burner flue housing. When the fridge is running the burner will heat up the flue housing which will close the switch. This will then call the fans to run. Doing it this way the fans will only run when the fridge is actively cooling.
