[Christ]

Assuming you carry tools with you, if the e-fans ever fail, you could always just reinstall the normal fan and belt.

Using dual fans would probably be the best bet if you're worried about failing... at least that way you have a fan that will take up some of the slack if one of them fails, the second will still be working, and you'll be able to get where you're going, and get home, so you can fix it at your leisure (for the most part).

I've always used junkyard fans for my conversions, no matter what it was going on (including big trucks, meant to carry far more than your camper rig.)

In all the years you've been around, how often have you heard of an e-fan actually failing?