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Wisconsin Dairymen's Association / Thirty-second annual report of the Wisconsin Dairymen's Association : held at Platteville, Wis., February 10, 11 and 12, 1904. Report of the proceedings, annual address of the president, and interesting essays and discussions relating to the dairy interests

[King system of ventilation],   pp. 51-54 PDF (828.2 KB)

Page 52

2Thidy-ecmd Annus  p  of X. 
where the warm air is. All hay chutes, all silo chutes are shut 
off, the barn is kept closed, but the air changes in that barn 
every hour. You see that provision here is to introduce the 
fresh air and not let the heat off. Foul air is about fifteen per 
cent heavier than fresh air and needs a powerful draft to pull 
it out of the shafts, so there must be considerable suction to 
take this foul air out. This is of simple construction. All it 
needs is that the barn shall be constructed with a view to that 
end; it must be sealed and constructed with these ducts and the 
outgo here in the central shaft and you have the whole question 
in a nutshell. If every farmer in this state would purchase 
Professor King's Physics of Agriculture, where he handles 
almost every physical proposition on the farm in the way of 
trench building, ventilation and all those things, and study that 
book, it would be to him a gold mine of judgment. 
Mr. Cleary: Such a barn as you have described yours to be 
was recently built in this vicinity, on the farm of Albert E 
Russell, about ten miles north of here. 
Secretary Burchard: One of the best ways to warm a stable 
is to put in this ventilating system. The Governor talks about 
his stable standing at 55 and 60, and one reason is that this sys- 
tem draws off the cold air which is at the bottom and lets the 
warm air come down. When you build a house, if you put in 
a fireplace or any other arrangement which will draw the cold 
air off from the floor and let it go out, the warm air being just 
up above will come down, otherwise it will stay there. 
Prof. Henry: One other thing. When you have a hay 
chute coming down to the ceiling of your barn and you think 
you are going to ventilate your barn by opening the hay chute, 
you simply let out all the hot air in your barn and it is as cold 
as ever. 
Mr. Everett: It should be explained that this ventilating 
shaft must come down close to the floor and take the cold air 
out This flue is a chimney that draws the air from the floor. 
The air comes in between the studs near the ground outside and 
passes up above. He has his chimney starting near the Boor 
and that carries the foul air out. 

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