RANKIN'S DUCK BOOK 



per day. This was presenting the matter in a new phase. The 

 difference in cost of running these heaters one year would 

 purchase two. I was then running three heaters called the 

 "Bramhall-Deane Heater" and was heating two brooding 

 houses (one 250 feet long, the other 175 feet long), at half the 

 cost per day. Either steam or water may be used. I preferred 

 water for both safety and economy. 



For instance, should the fire go out accidentally the heat 

 would cease at once where steam was used, while water would 

 hold its heat for hours, and would continue to circulate just 

 so long as the water in the boiler was hotter than that in the 

 pipes. 



Figure 12 represents our brooding-house as it appeared 

 outside. Its dimensions have already been given. It was 

 boarded in with closely-fitting hemlock boards, the whole be- 

 ing covered on the outside with the heaviest quality of 

 "Patent" Roofing. 



Interior Arrangement of Brooding-House. 



As the construction of this building has been already no- 

 ticed, I will proceed to describe its interior arrangement for 

 a brooding-house. In the first place, as in the breeding-house, 

 there should be a walk three feet wide the entire length of the 

 building on the back side. Next to the walk, and parallel with 

 it, the brooder box should run. This box will be thirty inches 

 wide, and like the walk, the entire length of the building. In 

 my building the brooding arrangement was very simple, be- 

 ing a box with two sides resting on the ground, eight inches 

 high in the clear, the ground being utilized as the bottom of 

 brooder. 



This brooding-box consisted of two parts. The sides, 

 seven inches wide, were nailed securely, and constituted the 

 sides of the pipe-stand. The cover was portable, with cleats 

 nailed across the top to strengthen it, and with strips an inch 

 wide nailed underneath, in front and in back, to keep it in po- 

 sition. These strips were supposed to rest on the seven-inch 

 strips in the sides, and, when the cover is on, make a tight 

 brooder. 



Figure 13 represents the interior of brooding-house, with 

 these covers on the brooders and ready for use. Also, with two 

 of the covers removed showing the heating pipes. These con- 

 sist of a two-inch flow and return, running parallel with each 

 other the entire length of the building, and lying ten inches 

 apart from centre to centre. These pipes rest upon cross 

 boards whose length corresponds with the width of the brood- 

 er and to which the sides are nailed ; two-inch holes are cut 



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