Refrigerator Circulator Fan

Here's what I use. It clips under the wire shelf. No special mounting required. Originally designed to cool 3½" hard drives.
Wire the 2 fans in series and you'll never hear it.



NewEgg

Richard

Hi,

I have the fan in the link I sent. All I can say is I no longer have ice build up on the fins, and the fridge cools faster and has less variation in overall temperature.

wopachop wrote:
For ultimate performance what circulation of airflow would be best?

Do you want a fan blowing down a couple fins horizontally?

Now I remember looking at the different bearing types when I bought mine. I just looked them up in our order history. I went with a 5 pack of ARCTIC F12 with fluid dynamic bearings from amazon. I used 1 inside the fridge and 4 in the roof vent. I tapped into 12v for the roof fans in the exterior access panel, and put an on/off/speed controller in the area under the kitchen sink. If we are boondocking and need to save energy I can turn off the exterior fans, and unclip the alligator from the interior fins.

The fans are on, the light is not.

Bags4266 wrote:
Slightly confused. I’m always complaining on the temp in the fridge. If the fans are connected to the light source then they are continually on?

Yes, on all the time.

Slightly confused. I’m always complaining on the temp in the fridge. If the fans are connected to the light source then they are continually on?

My compressor fridge is small, 1.8 cubic feet. It has the evaporator plate bent into an oblong shape to form the freezer portion.

I aim my Sunon fan so that it blows air into it. It used to have a flap for the freezer door but I removed that. When i open the door it is basically pushing ambient air into the freezer. Unideal. I intended to play with location and test results, but have not bothered in the nearly 6 years I;ve been using this fridge

In the pics above, with fan s pushing air across a tiny percentage of the fins, that also seems less than ideal and a fan circulating air across more of those fins would seem to be better, but any airmovement inside is going to help the fins suck heat from the items within.

the 40mm Noctua draws 0.05 amps, that is the same as the 1500rpm 120mm nf-f12 which moves 6x more air for the same amperage consumed.

My 0.03a 40mm Sunon maglev fan does not seem to be available anymore, but it was the lowest amp draw fan I could find in 2012

For ultimate performance what circulation of airflow would be best?

Do you want a fan blowing down a couple fins horizontally?

Looking at the fridge i was going for a circular clockwise air flow. Fan blows down on the right side. Thought it might reduce loss when the door is open. I would like a switch that kills the fan when open. Might not matter since the fan will spin for a good couple seconds after it powers down.

pianotuna wrote:
Hi,

The first url is invalid, and the other is not visible to me unless I do a quote.

This looks better:

https://rvcoolingunit.com/Norcold-Evaporator-Fan-Greater-inside-Cooling-Custom-Deluxe-wGrill-P3239953.aspx

I was also interested in getting one of these fans but the plain jane model with no lights is no longer available. you have to purchase a "deluxe" model at $75.00 now. The no frill models are still listed and cost only $25 but all are out of stock.
A HUGE jump in price just for LED lights.


I am now looking to build my own with some CPU fans. No way I'm paying $50 more just for LED lights.

Dave

Yes that's the site. Corrected mine but they are still out of stock.