Originally Posted by matts37chev
i got a new furnace this year and saved the big squirrel cage fan from it for this purpose.
but now that i'm thinking about it, is this going to be too much exhaust fan?
will it be windy in there, or does the fact that you've built a room with only the furnace filters for intake, keep it from getting to much airflow?
the reason i ask is because i use a similar furnace/fan screwed into the rafters for heat in the garage and when it is on it gets down right windy under it.
Is there a tag on it with cfm flow - or is it history. For a home booth you don't need a lot - just enough to keep the air reasonably clear with out picking up dirt. Then of course, there's the spray gun. I use an Iwata which does not
use lots of air volume or pressure. If you have a HF 'purple' or similar, you need lots of both pressure and volume which of course puts out clouds of overspray .