Resopening this thread since a search didn't show anything as relevant any newer. I'm wondering why the fan upgrade doesn't get more mentions here?
I just installed the Fabulous Operating Products exhaust fan upgrade kit in my Windjammer. Luckily, I had the existing fan that is the easy install. It took me less than an hour. I was really surprised to see the original fan and motor-- the motor is barely bigger than some of the slot-car motors I played with as a kid.
In my install, the fan isn't as quiet as some describe but it isn't as noisy as the original fan even with the upgrade running on high. It does move a good quantity of air! Looking forward to being able to use the inside stove in seasons other than winter.
The only issue I had was that the wiring on my original installation had the power leads for the fan and light reversed. The FOP instructions expected the fan switch to be first in the chain. When I first tested, the light switch controlled the fan and the fan switch controlled the light! I was able to pop the switches out and rearrange the connectors so the switches were correct with only a little extra effort.
The full process took a little over an hour... mostly because I spent a lot of time trying to look at the small figures in the instructions. For the price of the product, the installation instructions could be a lot better. Like others, rather than install the replacement outside vent cover I removed the damper on the existing vent cover. That seems to give me a pretty good airflow.
I think this will be a good addition to the camper. I "wish" that the original exhaust had been of better quality. For an over-the-stove exhaust fan this is pretty expensive, but if you want to cook inside it is almost an essential upgrade.
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