Cyclopedia of architecture, carpentry, and building : a general reference work ... (1907)
American School of Correspondence · Chicago : American Technical Society · leaf 169
15 O O t-« oi r<3 STEAM AXD HOT WATER FITTING 5 . down-draft principle, the air being drawn down through the fire in-stead of passing upward in the usual manner. Coke Boilers. Coke is a popular fuel in some parts of the coun- … Fig. 5. Vertical Sectional Boiler. try; and certain makers are putting out specially designed boilersfoi- this ser^ice, having a very deep fire-box. Boiler Setting and Foundations. Brick setting of boilers, as
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