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I need a better thermometer, but some more proof of concept testing last night showed that varying the fan speed does affect the temp output.
Not by much though. Bear in mind that I'm testing in an open garage and my return air is not being reheated. I'm drawing in fresh non heated return air on the backside of the computer fans.
I was able to get our digital camp thermometer up to 118?F and when I reduced the fan to an inaudible level, the temp dropped to 114?F.
The next step in testing will be with some off the shelf computer cooling components.
We found a small brushless pump that works on 12v DC and some silent or near silent computer fans that run at 6 db at near full speed.
Along with the fan, we found purpose built radiators that accept the 120mm cooling fans.
I'm pretty happy with all the results so far.
BTW- does any one know how to convert a Cubic meter per hour fan rating to CFM?
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I am Savvy.
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