Millikan, Robert Andrews, Gale, Henry Gordon · Boston : Ginn and Co. · leaf 245
212 THE TRAXSFERENCE OF HEAT rooms. Here a part of it escajies through windows and doors, and therest retui-ns through the cold-air register to be reheated, after beingmixed with a fresh supply from out of doors. When the fire is first started, in order to gain a strong draft thedamper C is opened… … Copper heating coils
Physics
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