I had a similar problem and was running 2 radio shack fans but they were too loud. I replaced them with a component fan made by Elan. It's called the Elan Z Fan and is 17" wide and only stands about 2". It contains 2 fans and has a remote turn on and remains on for 2 minutes after the system is turned off. The fans are also heat sensitive and speed up or slow down as needed. It retails for around $250.00
Larry
Larry