Exhaust fan help

[RHChicks]

Hi all! I have had chickens for 2 years and this summer I wanted to put in a exhaust fan for them. I need one that is on the small size so I can put it above the door so it isn’t right above their roosts. I also need it to be under $40 if possible. Any suggestions would be great!!

thanks!

 

[aart]

I need one that is on the small size so I can put it above the door

How small @RHChicks ?
Please post some pics of your coop, inside and out.
Exhaust fans can be dangerous in a coop due to the dust.
'Dust proof' barn fans are made especially to prevent fires,
but not sure they make them in small sizes.
Better to blow air into coop from east side of coop to cool it off late in day