. Commercial poultry raising;. Poultry. TEST THE BROODING SYSTEM 309 bined areas of the fresh air intakes. Cold air expands when heated, hence the necessity for doubling the size of the exhaust ventilator. Ventilating cupolas of galvanized iron may be purchased in varying sizes from sheet-iron workers, or a similar device may be made of wood which will answer the purpose nicely. If one does not wish to cut an opening in the roof, the highest point in the. {Courtesy Prairie Stale Incubator Co.) Fig. 203.—Sectional view of coal-burning brooder stove. A, Base; B, ash- pit; C, grate; D, fire draft
. Commercial poultry raising;. Poultry. TEST THE BROODING SYSTEM 309 bined areas of the fresh air intakes. Cold air expands when heated, hence the necessity for doubling the size of the exhaust ventilator. Ventilating cupolas of galvanized iron may be purchased in varying sizes from sheet-iron workers, or a similar device may be made of wood which will answer the purpose nicely. If one does not wish to cut an opening in the roof, the highest point in the. {Courtesy Prairie Stale Incubator Co.) Fig. 203.—Sectional view of coal-burning brooder stove. A, Base; B, ash- pit; C, grate; D, fire draft; E, thermostat wafer; F, counterpoise weight; G, regulator arm; H, escape vent; I, metal hover; J, curtain. front wall of the building may be converted into a ventilator, and fitted with a shield or baffling plate to prevent back currents of air or driving rains from entering the house. Test the System.—When the brooder stove and ventilation system are installed, it is advisable to try out the scheme for a few days before the chicks are brought out, in order that the operator may familiarize himself with every phase of the work. Ascertain the exact heating capacity of the stove under severe. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Roberts, Howard Armstrong, 1885- [from old catalog]. Philadelphia, D. McKay
Size: 1949px × 1282px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1920, booksubjectpoultry, bookyear1920
