DAIRYING 





Plate 22. Method of ventilating a lean-to stable. The air enters 

 at AB, and then passes out through the flue CE, built on the side wall 

 and roof of the upright. In constructing this flue enlarge it at the 

 plate and purline plate to avoid checking the draft. This flue, CE, 

 might, instead of following the line of the roof, pass out through the 

 roof at the plate to a height of two or three feet above the ridge. 



SUMMARY OF ESSENTIAL POINTS IN VENTILATION. 



1. The stable must be tight or so built that it can be made 

 tight by closing windows, doors, etc. 



2. The exit flue for the ventilating system must be air tight 

 like the smoke chimney for a stove, with no reduction in size 

 throughout its length. A round or a square flue is most efficient 

 and this construction with as few bends in the flue as possible 

 will reduce the friction of the air passing through it. 



3. The openings for air entering the stable should be placed 

 on all sides of the building one about every 10 feet, with the out- 



