Added a Ventilation Fan to Lower Bunk

[slow]

Since our lower bunk has no a/c or heating ducts, it can get stuffy for our granddaughter. So I decided to add a speed controlled fan to ventilate the lower bunk area with air from the living room of our FW.

Here is the finished install:

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From inside the lower bunk:

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The components included a 70 mm computer fan and a 12V dc speed controller:

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The computer brushless ball bearing 12V dc fan I already had is similar to this one: https://www.amazon.ca/uxcell[emoji2400]-SNOWFAN-Authorized-Brushless-Cooling/dp/B07KH3KJQZ/ref=sr_1_6?keywords=70mm+12v+dc+computer+fan&qid=1570405741&s=automotive&sr=1-6-catcorr

The fan is mounted in a ABS cap I modified and then attached to the aluminum tube.

The speed controller was purchased on Amazon: https://www.amazon.ca/dp/B07SQQTK6M/ref=pe_3034960_233709270_TE_item

I already had a white vent. The black was also purchased on Amazon: https://www.amazon.ca/dp/B0095TEPI0/ref=pe_3034960_233709270_TE_item

I used a 4 1/4" diameter hole saw for cutting the hole for the "fan tube":

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I will need to wait until next season to give it a real world test since the FW is going into winter storage next week.