I'm guessing that Chester is referring to his B1700, not his B1300. Our B1700's all seem to have range hoods incorporating a fan {*
see note}, which is a feature I like. It makes more sense to me to try to get cooking fumes out of the kitchen vent than getting them over to the roof vent, but I guess you use what works. The hood is even a nice-looking brushed aluminum unit, with a 12V
light.
It is 12V, and I find that ours is both marginally effective and very noisy for what it does; however, I just think it's suffering from age. Just as the modern powered roof vents (such as the Fantastic Fan and MaxxFan) are much more effective and much quieter than those old little fans stuck in the original vent, a kitchen fan could be quiet and effective. The computer fan idea is interesting, and might fit in the hood space nicely to form a more effective system. I also need to remove the external vent grille and do some cleaning and re-sealing, so it will be interesting to see if the airflow is obstructed.
In an earlier discussion,
Question for Fantastic Fan Owners, Do you usually run it on exhaust or intake, Roger H. had what I think is a good idea: use the powered roof vent in the intake direction to supply air to go out the kitchen vent. He uses this approach with just an open window, but I intend to try this as a way to make the range hood exhaust fan more effective.
My range hood was factory installed, attached to the (wooden) cabinet above with four wood screws and connected to the same wires which supply the outside
light fixture; it has its switches in the hood, so it doesn't need any controls hooked up - just the two supply wires. The exhaust vent is on the back side, and lines up directly with the rectangular vent hole in the trailer side.
* Note: not all of them! see F.Bishop post, below...