. The book of the garden. Gardening. furnace, shows the fire-grate over the ash-pit a. The furnace oven is surround- ed by a chamber, the outer walls of which, b b, are built double, to retain the heat. This chamber is furnished with six rows of earthenware pipes, 20 inches long, and 1^ inch in diameter, their orifices being all kept open. As will be seen in the section, these pipes are placed in a posi- tion to allow the flame and smoke to pass freely through the chambers, and to escape at the flues //. " The tubes, thus heated, are made the channels through which all the fresh air is ad
. The book of the garden. Gardening. furnace, shows the fire-grate over the ash-pit a. The furnace oven is surround- ed by a chamber, the outer walls of which, b b, are built double, to retain the heat. This chamber is furnished with six rows of earthenware pipes, 20 inches long, and 1^ inch in diameter, their orifices being all kept open. As will be seen in the section, these pipes are placed in a posi- tion to allow the flame and smoke to pass freely through the chambers, and to escape at the flues //. " The tubes, thus heated, are made the channels through which all the fresh air is admitted into the house ; and it is easy to imagine that there is a cold-air chamber externally, and a warm-air chamber within, together with valves and gratings to facilitate and control the passage of the air, and to regulate the temperature. The double walls, b, are filled with pounded coke, and there are air spaces, e e, all well adapted to prevent the loss of heat at improper places. There is also a boiler, d, with steam and other pipes, to command any- required supply of moisture. The ends of the pipes are separated by fire-bricks Fig 294 cu* in*° the form repre- sented in fig. 294. The apertures in the inside of the house, through which the warm air is admitted, are as at b b. The external appearance of the stoke-hole, is as below, fig. 295 : u u are doors for clearing out 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
Size: 1677px × 1491px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1850, booksubjectgardening, bookyear18
