A treatise on architecture and building construction (1899)
International Correspondence Schools · Scranton, The Colliery engineer co. · leaf 341
om these they pass throughthe upper sets of tubes a^ a into the front chambers «, «, andreturn through the lower tubes /;, h to flues a.t the rear,which conduct them to the chimney c. The air enters at thebottom of the casing, flows upwards between the tubes,and passes off at the top through the… … Fig. 84. There are so many hot-air furnaces in the market that noattempt will be made to describe them in detail. Circularsand descriptions can easily be obtained upon application to manufacturers or their agents. COMBIXATIOX HEATERS. 330. These heaters are the same in construction as ordi-nary…
Architecture · Building
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