Suggestions in re: These Ventilation Cartoons?

[3KillerBs]

An Open Air coop:

 

[DavidReaves]

P.S. The chicken's name is Repecka.

She has a sister, Peckelope, in New England, and a cousin, Elizapeck, in Minnesota to help illustrate how different coops work for different climates.

Don't forget the niece in Mississippi, Layla! That hot and damp climate is important too!

 

[3KillerBs]

Peckelope lives in a Woods Coop:

@Ted Brown and anyone else who has a Woods Coop -- did I get the airflow pattern right here?

Is the half-monitor closed in the winter or only the side windows and vents?

 

[3KillerBs]

Don't forget the niece in Mississippi, Layla! That hot and damp climate is important too!

Repecka lives here in the Steamy Southeast in North Carolina. That's my own open air coop, Neuchickenstein.

(Seriously, assuming that one of the white chicks that survived the snake predation is one of the California Whites I'm going to call her "Repecka" in honor of these cartoons).

 

[Ted Brown]

Peckelope lives in a Woods Coop:

View attachment 3154664

@Ted Brown and anyone else who has a Woods Coop -- did I get the airflow pattern right here?

Is the half-monitor closed in the winter or only the side windows and vents?

Air flow changes from winter to summer.

You have the basics correctly shown for summer when both side and upper monitor windows open.

In the winter with everything except the front closed the air flow is in along the bottom of the open front, air pressure in the back section builds up and forces the incoming air upwards then back out the upper section of the front.

 

[3KillerBs]

Air flow changes from winter to summer.

You have the basics correctly shown for summer when both side and upper monitor windows open.

In the winter with everything except the front closed the air flow is in along the bottom of the open front, air pressure in the back section builds up and forces the incoming air upwards then back out the upper section of the front.

So I'll need a second, winter drawing then? I can do that.

Thanks.

 

[Ted Brown]

So I'll need a second, winter drawing then? I can do that.

Thanks.

Yes a second drawing is needed.

I did some searching both in the book and herein. I know I have seen a diagram illustrating winter air flow but did not find it. The air flow does not intrude into the back section, mainly moving air in and out of the front lower section.

 

[saysfaa]

I've seen one too and couldn't find it either.

I agree the winter air doesn't intrude but it does move through the back part. The difference being how slow it moves. Woods calls it "wafting gently", if I remember correctly - the air in the front section and along the floor of the back section is cold, like outside. The chickens breath out warm air, which rises. As it rises, it cools. As it cools, it sinks but it can't sink down on the chickens because they have continued to breath more warm air. So it wafts down the slope of the front roof. The warm air rising (and the cooling air sinking) pull (and push) fresh air in along the bottom of the open front.

Edit to add.. solar heating contributes also. That is part of the reason Woods so strongly recommended the half monitor (so sunlight reached the back of the coop).

 

[3KillerBs]

Before I get to the Winter Woods Coop, here is Elizapeck, who lives in Minnesota, where the summers are very hot and the winters very cold -- soffit vents and top-hinged windows so the ventilation can be easily adjusted to the weather.

 

[3KillerBs]

@Ted Brown Does this look right for winter?