Bob Blick wrote:
> Any V-8 engine running at full throttle ought to be able to pull 400 CFM
> through that duct. Other than that, I'm utterly useless :)

I know the feeling exactly....

I really should pay a HVAC engineer to do this (and the make up air as 
well), but finding a HVAC engineer who will take the time to do this 
small of a job in my area is not likely...  heck, I'm involved with 
trying to get a quote for a HVAC redesign for a building I'm involved 
with and can't get anyone to even look at the project...

I will probably end up putting some sort of way-too-large fan on a 
way-too-large duct with a short piece of 4" duct to connect to the 
flange on the machine... and hope that I'm in the 400cfm range when I'm 
said and done.

-forrest
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