S siobudbor Active Member Joined May 17, 2020 Messages 35 Reaction score 14 Jun 15, 2020 #1 My fan is rated 400 CFM. It has variable speed 1-10. At what speed is that 400 CFM achieved? I'm thinking 2 or3? 10 seems like it would move a lot . I have 110 CF or so to work with.
My fan is rated 400 CFM. It has variable speed 1-10. At what speed is that 400 CFM achieved? I'm thinking 2 or3? 10 seems like it would move a lot . I have 110 CF or so to work with.
S siobudbor Active Member Joined May 17, 2020 Messages 35 Reaction score 14 Jun 15, 2020 #2 Upon further contemplation...it's gotta be highest speed.