Most electronic surplus suppliers have continuous duty muffin fans and pancake blowers by the ton. These are usually removed from scrapped computers and are available in all voltages from 3.3 to 240 v. Prices range from $2 to $20. One of the largest and most reliable suppliers is MECI in Dayton, Ohio. Web site is: www.meci.com Larry Z

LRZeitlin@aol.com writes: >These are usually removed from scrapped computers >and are available in all voltages from 3.3 to 240 v. Thanks Larry, hope that'll help the person with the hot engine room. As you know, I used to work for 25 years on mainframe computers and handled muffin fans extensively. The good ones are virtually indestructible. At one time we, Honeywell, got a line of equipment manufactured in France. They accidentially installed 240 V / 50 Hz fans. Had to change them all out for 110V / 60 Hz. Now these 240 V fans if hooked up to 110 V run at about half speed, whisper-quiet but still move a fair amount of air. If you ever get your hands on one, try it - you'll like it. George of Scaramouche1, Lake Ontario, Canada