. The book of the garden. Gardening. HEATING BY HOT-WATER PIPES. 159 to the coiled pipe, and thus forms an endless pipe. At the highest point of Fig. a the heating-pipe / is another pipe d, of a larger diameter. This is called the ex- pansion-pipe, into which the water rises as it expands in heating, to prevent the apparatus bursting. The filling-pipe o rises to the level, and no higher, of the lower part of the expansion or safety pipe. " The tubes being thus arranged, the whole series, except the expansion-pipe, is filled with water by means of a force- pump applied to the filling
. The book of the garden. Gardening. HEATING BY HOT-WATER PIPES. 159 to the coiled pipe, and thus forms an endless pipe. At the highest point of Fig. a the heating-pipe / is another pipe d, of a larger diameter. This is called the ex- pansion-pipe, into which the water rises as it expands in heating, to prevent the apparatus bursting. The filling-pipe o rises to the level, and no higher, of the lower part of the expansion or safety pipe. " The tubes being thus arranged, the whole series, except the expansion-pipe, is filled with water by means of a force- pump applied to the filling-pipe o; and as it is of importance to free the endless pipe thoroughly from air, the water is pumped several times through the tube until this is accomplished. The endless pipe being thus filled with water, and the expansion-pipe empty, every part of the apparatus is strongly and hermetically closed. The endless pipe having a bore of about half-an-inch, and being a quarter of an inch thick, is capable of sustaining a very great pressure. Fig. 170 is a plan of the furnace taken above the grate. Fig. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original McIntosh, Charles, 1794-1864. Edinburgh and London, W. Blackwood
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Keywords: ., bookcentury1800, bookdecade1850, booksubjectgardening, bookyear18
