Well I thought if I must be forced to use a proper rad & fan, lets be really silly about it
The Kenlowe fan will be used on a car at some point, (as that's what it's designed for, additional cooling if towing, or for custom cars... big V8's in smaller bays etc).
If you want a fan like that, a cheaper option is your local car dismantlers. Just about every front wheel drive car has 1 or two fans like that on the Rad, (but they may not look quite as sexy as the kenlowe)
It's supposed to be 12v but I've been running it at 3v, 5v & 7v for a month and it has no start up problems at any of those voltages, nor has it appeared to affect it. It uses 2.4 amps @ 3v, 3.2 amps @ 4v and 4amps @ 5v. While it couldn't ever be classed as near silent, Its pretty quiet @ 3v under the desk... just a soft woosh... quite soothing actually.....wouldn't want it right next to my ear though
I'm going to put it and the rad in the loft soon, (was 6C up there last night)
