Cyclopedia of architecture, carpentry, and building : a general reference work ... (1907)
American School of Correspondence · Chicago : American Technical Society · leaf 239
methodof warming rooms on cold mornings in late spring and early fall,when furnace or steam heat is not at hand. It has the special advan-tage of being instantly available, and the amount of heat can be regu-lated at will. The heaters are perfectly clean, do not vitiate the air,and are portable.… … Fit?. 163. Electric Car-Heater. which is equivalent tc 3,410 B. T. U. A watt is the product obtainedby multiplying a current of 1 ampere by an electromotive force of 1volt. From the above we see that the B. T. U. required per hour forwarming, divided by 3,410, will give the kilowatt-hours necessary…
Architecture · Building · Carpentry
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