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Discussion in 'Coop & Run - Design, Construction, & Maintenance' started by Newchickenguy84, Jul 17, 2019.
So I'm finishing up my 10x14 metal shed. I added a fan should I have it blowing air in or out?
Is the shed in the shade? Do you have a ridge vent or other high ventilation, as well as lower ventilation?
Pictures would be helpful.
I'd have it exhaust.
The fan will stay cleaner if you blow into the structure... chickens are very dusty when they are not wet.
Have to agree with jthorton blow in
But you don't want to have a fan that the chickens can't get away from, blowing on them, do you?
You can have the fan blow on one of the roosting bars. Another bar would not have the fan. I have seen others do this, and that's what I will be doing on my new coop build.
I have an exhaust fan in one of my coops and it works really well. It pulls clean air in from the outside and blows out, sits about 5.5-6' off the ground so it's above the roosts. It runs year round.
The thing about blowing in vs blowing out is that blowing air in creates one localized spot that creates a lot of air velocity inside the coop resulting in a lot of turbulence. Chickens don't like air blowing on them. Exhausting air draws air from the inside through every coop orifice creating a much gentler draft. I'm pretty sure that poultry houses exhaust air because that creates a more even temperature profile than blowing air in does.
Modern poultry houses use both positive pressure and negative pressure ventilation systems.