80.5 > 73.4 (tilt head left). See you in the dust!

P.S. Don't take this shit too seriously! It's an adventure. If you're not having fun, you're not doing it right!

Thanks again Canoe! I appreciate your thoughts. It makes me curious how much Figjam played with his design before posting it. We don't see much evolution or experimentation,, just bam here it is based on that earlier big one and it works great. Or maybe he already had enough construction and design ...

I will say this: if I had followed Figjam's proven design exactly, I would not have the understanding of the principles invovled--WHY it works--that I now do.

I reconfigured the pad into a U shape like your second picture, but in the opposite direction (the top of the U faces the fan). That made the most sense space wise since the fan sticks out toward the inside (and it is more like box designs with three sides of pad and one output). The hose is now com...

Wow Canoe, the time, diagrams and thought you put into responding to my post is impressive! Last night I tested it after work and it brought 81 degree air in and put out 74 degree air. I've used my yurt the last two years. When I first constructed it, I put one 4" hole about a foot high on one end a...

Fan description says "airflow up to 3.7m/s." Not sure if that is measuring just speed of airflow or volume of air. Did the math. 3.7 m/s of airflow over the area of a 6" circle = 146 cfm. Actual number lower since there's no flow in the center. I got what I paid for. Went for the $15 fan instead of ...

Thanks! I actually first made it with two pads parallel to each other, but that seemed to strain the fan a little, so I reduced it to one.

Thanks Figjam.

Because I got the fan I did, which has a switch on the back of it, I wanted mine inside so that I can easily turn it on/off. I keep my battery inside to power my lights, etc. If I put the cooler outside, I'd have to run a wire inside.

Thanks for your observations! My original plan for the 4' duct from the yurt wall to the cooler was about a 20" duct (it was a duct I had on the outside on previous years just so there was air flow. I have a similar duct on the other side of my yurt so the air can move through.) I don't think it wou...

Here's my version: IMG_2608.JPG IMG_2609.JPG IMG_2610.JPG Parts: 8 gal trash can 12v DC water pump - http://tinyurl.com/hdpx4sk 6" USB fan - http://tinyurl.com/z2yykbm (they raised the price, I only paid $15) 1/4" ID vinyl tubing nut, bolt and washers to seal end of tube (it's what I had on hand) pa...