Okay, as promised here’s an update on the mini humidifier I built for my wine cooler.
This time it WAS made to be pretty and also to take up the least amount of space possible.
The idea is the same…..
A humidifier wicking filter goes inside the PVC pipe and the computer fan blows upward drawing air across the filter and exhausting moist/humid air.
This time I used a computer case fan (12v DC) instead of the processor fan I tried before.
I have also upsized the PVC pipe from 1.5” diameter to 2” diameter.
Instead of taping the fan to the top I made an adapter plate out of HDPE cutting board material and then epoxied it to the PVC pipe.
If the fan fails I can simply remove 4 screws and then replace the fan.
The entire device is a little less than 3” tall and about 2-1/2” in diameter which means it takes up very little space in the fridge.
I’m hoping that the larger fan and the larger PVC pipe will raise the humidity just a touch more although I have been getting in the 80 percent range with the other set up.
The epoxy is still drying but I will give this a test run tonight.
So far I am only having to fill the water basin twice a day (once before leaving for work and once before going to bed) so that’s not that bad.
As for price…...
The computer fan was $1.50 from newegg.com.
The PVC pipe I had in the garage but it would probably be around $.70 per foot at a hardware store.
The Wicking Filter was $3.50 at Wal Mart and will probably last a minimum of 4 months.
The Cutting board was $3.75 at Wal Mart but I have enough material to make probably 6 - 8 of the adapter plates.
The epoxy putty I had in the garage but again, it’s probably less than $3.00 for a small tube.
The biggest expense is the 12v power supply…..around $15.00 at Wal Mart but if you have a 12v DC power supply laying around that makes this a pretty inexpensive set up. Also, instead of buying the multi-voltage supply that I did, you can probably buy a straight 12v DC power supply for very little money, online.
Anyway, here’s the updated pics I promised.

Dave