when it comes to electric motors, i'm a dunce. :( Is there a way, transformer??, what ever, i can use to reduce the speed of my existing paint box exhaust fan?

no you have yet to learn...

why can't you just add in a dimmer switch

Why would you want to do that?

Why would you want to do that?

What he said...:huh:

I bought mine like yours.. works great.. but, wished it pulled a little harder...

There is a reostat however you spell it, that is used to slow a router down in speed, maybe that type of thing would work on the fan.look under woodworking tools

Why would you want to do that?

maybe because once the overspray is gone, ya want to keep some air movement to keep the fumes out also but not as much air volume is needed.
I have 2 different fans for high CFM and a lower CFM

i was reading in mother earth news this morning and came across this
intersting site....

more gizmo's and gadgets than you could shake a stick at lol :claps:

http://www.sciplus.com (http://www.sciplus.com/)

maybe because once the overspray is gone, ya want to keep some air movement to keep the fumes out also but not as much air volume is needed.
I have 2 different fans for high CFM and a lower CFM

Good point! Maybe he has a big fan!! I am thinking small exhaust fan like my booth!! ;)

Thanks for all the suggestions and help. I'm going to try and match up the motor with a whole house fan speed control switch. Hope to get just enough draw to vent the 8 or so hours while my sealer is drying.

If you set the fan back far enough, you can put a blast gate in the duct work, that will give you exact control of the amount of air flowin through you spray hood....just another thing for you to comtemplate

another good idea RF9. :btu: When i make my new dryer, similar to yours, i'll put a 1-2in pvc elbow in the top and vent outside. Figure if i put a baffle in the straight pipe, i'll be able to control the amount of heat from the light bulbs, and with the heat rising it should vent any gases outside.
You guys just keep me learnin. :hihi:

So Dave you are venting the fumes from the drying of the sealer. You want to slow the fan just enough to get rid of the smell, fumes, but not too fast to blow out the warm air from the room?

That's it P. :) High speed to start in the paint box, than low to vent sealer.
Heat rising in the dryer box to vent clear coat.