Replacing a 12 V range hood with 120 V

Dutch, I'm liking the computer fan idea. Can you give me some more info on how you did it?

2oldman wrote:
Computer fan moves enough air to keep the vent flap open?

Yes, the fan I installed even keeps the vent open at its slowest (500 RPM) setting, although not quite as far as the full speed (1300 RPM) does.

Why not quiet down the one you have.. In days long gone you could get a variable resistor often on a bracket with "HEAT" labeled on it (or FAN). this was for the heater blower on a car..

Works on the range hood too..

Computer fan moves enough air to keep the vent flap open?

Ditto on the computer fan. Did not bother with variable speed. Still much quieter AND moves more air. I did not replace it for noise; the original packed in and I was not about to pay RV dealer prices for a toy motor with an out-of-balance propeller on it.


Stu

I replaced the loud OEM fan in our range hood with a variable speed 7" (180mm) 12-volt computer fan. It's very quiet, and the speed can be adjusted as needed to suit our cooking needs.

I'm not sure a residential fan will be that much quieter, although they almost all have multi speeds and a better light.

I added a switch and a resistor, to make the fan 2 speed with some reduction in sound. Others have added a rheostat to help (I think I should have done that instead).

Others have replaced existing fan with a computer type muffin fan.

If not being able to run fan when not tied to utilities is not a problem for you, its your choice.

Doug

It's usually quite a bit of work, mostly from the wiring changeover. Have you tried pulling the fan and trying any modifications to the system? Maybe you could try describing what type of noise that is "painful". If it's all about the amount or amplitude of the noise, you could put a rheostat in place or alongside the fan switch and run it at lower speed. Often, a loud fan is because there is interference in the path of the exhaust air. A well tuned motor and blade set will make zero noise if there is nothing to interfere with the air being moved.

Moved from Forum Technical Support

Sure but it then wont work without hook ups. Tap into the microwave receptacle