Excerpt from Steam Heating for Buildings, or Hints to Steam Fitters: Being a Description of Steam Heating Apparatus for Warming and Ventilating Private Houses and Large Buildings, With Remarks on Steam, Water, and Air, in Their Relation to Heating; To Which Are Added Useful Miscellaneous Tables By a gravity apparatus is meant, one Without an out let, Whose circulation is perfect, wasting no water, and requiring no mechanical means to return the water to the boiler. It may With a hot water apparatus be likened to the circulation Of the blood - the boiler being the heart; the steam-pipes, the arteries; and the return-pipes, the veins; thus carrying heat and life into every part of a building. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.