O-E Vapor System Manual
This manual was created by O-E Specialty Manufacturing Co. and outlines how to install the "O-E" Perfect System, which is a Vapor Vacuum heating system.
No. 540 Heat Losses From Direct Radiation
This is an excerpt from Transactions of the Society of Heating and Ventilation Engineers from 1920.
"It is the purpose of this article to bring together all of the data which seem reliable upon the subject of heat losses from direct radiation. There have been many experiments made by different persons. Some of the results have been reported and some have been allowed to lie dormant. It is the intention of this article to bring together these various results in an endeavor to show the effect which the changes in the shape and size of a radiator, together with the conditions of operation, have upon the heat transmission. This article also discusses the theory of heat transfer from direct radiation and the effect of radiation and convection." John R. Allen, 1920
(Many thanks to Adam Wagner, P.E. for sharing this document with us.)
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