[Fig. 32] indicates a common form of corner grate. The flues in this as well as [Fig. 31] are drawn close together and come out through the attic and roof in a smaller stem. There should be distinct separation of flues.
Ash-pits are frequently made of four-inch brick walls strengthened by brick pilasters. These pits are usually from three to four feet in depth and the width of the chimney breast, and nearly as high as the depth of the cellar. Where more than one grate empties into an ash-pit, it is common to divide it into compartments, one for each fire. The top of the pit is crowned with a brick arch. Ash-dumps are sometimes provided for the grate, depending, of course, upon the kind of grate used, and ash-pit doors of iron for the pits themselves.
OUTSIDE CELLAR-WAY.
The side walls of an outside cellar-way should continue to the bottom of cellar. It should be floored the same as the cellar itself.
AREAS.
Areas of brick should be provided around all cellar openings that continue below grade. The bottoms of these areas should be floored with paving-brick. This is better than cement, as it admits of natural drainage.