My buddy and I finally worked out all the kinks (he recently bought a kegerator as well). Here's the break down:
one 12V 500MA Regulated CCTV Power Supply AC to DC Power Adapter PW12500R 1AR (
Amazon.com: Online Shopping for Electronics, Apparel, Computers, Books, DVDs & more) $9.99
one 12 VDC 76 MM MINI-BLOWER - CF-333 (
All Electronics | Electronic and Electro-Mechanical Parts and Supplies at Discount Prices) $5.75
5' of 3/4" type M Copper pipe (The Home Depot) $15.99
two 90 degree angle 3/4" copper joints (The Home Depot) $1.06 each
one 1.5" to 3/4" reduction joint (The Home Depot) $3.89
1' duct tape
The copper pipe and joints are simply pushed together. No soldering was necessary, as the snugness was enough to keep it all in place. The 1.5" end of the reduction joint matches the blower's opening almost exactly and is held in place by duct tape. The blower is only 9 CFM, but the copper's super low friction makes 9 go a LONG way.
The amount of cold air coming back down from the tower is quite impressive. The outside of the tower is drenched with condensation and I'm getting a perfect pour EVERY time (so far)! Hooray for beer!
When I get home tonight I'll check all three thermometers (bottom of unit, top of unit, inside tower) to gauge consistency. BTW: I'm quite happy with this thermometer I found ($8.29) for two of the three locations.
DealExtreme: $8.29 Indoor/Outdoor Digital Thermometer
Thanks to everyone for their help!
gAry