Posted by MoparNorm on Saturday, September 17, 2005 at 3:39PM :
In Reply to: 7 hp moves 18,000 cfm in my spray booth posted by chriscase on Saturday, September 17, 2005 at 12:25PM :
That's the right theory, but apples to oranges application. Electric fans are not "free" but the thermostat switch controls useage, thus they are more efficient than a clutch fan, which is still attached to the truck motor, even when "free-wheeling". Try you figures again at 2,000 rpm, unless you have a Dodge 230-6 that turns at 7,000....= )
MN
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