{ "item_title" : "How To Build Up Furnace Efficiency (1909)", "item_author" : [" Joseph Weller Hays "], "item_description" : "How To Build Up Furnace Efficiency is a comprehensive guide to improving the efficiency of furnaces, written by Joseph Weller Hays and published in 1909. The book covers a range of topics related to furnace efficiency, including the principles of combustion, the design and construction of furnaces, and the proper installation and maintenance of heating systems. Hays provides detailed instructions for improving the performance of both coal and gas furnaces, as well as tips for reducing fuel consumption and minimizing waste. The book is aimed at both homeowners and professionals in the heating and ventilation industry, and is written in clear, accessible language that is easy to understand. With its practical advice and wealth of technical information, How To Build Up Furnace Efficiency remains a valuable resource for anyone interested in improving the efficiency and effectiveness of their heating system.This scarce antiquarian book is a facsimile reprint of the old original and may contain some imperfections such as library marks and notations. Because we believe this work is culturally important, we have made it available as part of our commitment for protecting, preserving, and promoting the world's literature in affordable, high quality, modern editions, that are true to their original work.", "item_img_path" : "https://covers1.booksamillion.com/covers/bam/1/16/601/328/1166013286_b.jpg", "price_data" : { "retail_price" : "18.95", "online_price" : "18.95", "our_price" : "18.95", "club_price" : "18.95", "savings_pct" : "0", "savings_amt" : "0.00", "club_savings_pct" : "0", "club_savings_amt" : "0.00", "discount_pct" : "10", "store_price" : "" } }

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