Hayley - I get what you're saying; I just think the HOA would have something to say about a big snake of ducting hanging down from the window!
I didn't have the time to measure last night; hopefully tonight. I'm pretty sure it isn't 10 feet, though.
Larry - I'll contact them to see what they have to say for my needs. I also found a company called Sentry Air which markets similar systems and seems to have marketed to the metalworking community.