1030 COTTAGE, FARM, AND VILLA ARCHITECTURE. feet, and descends by c, again rising by d, descending by e, and finally rising by f, whence it passes into the chimney-flue. The 1839 walls of the partitions of this flue are of brick on edge ; and the bricks used are of a particular quality, ob- tained by washing the clay, and mixing it with fine sand, which admits of their being cut, or sawn, so as to form the dovetails shown in the plan, fig. 1838. The air is heated in the spaces between the smoke- flues, it entering at (/, in the section, fig. 1839, and passing off into a trunk, or other means of dispersion, at A. These stoves are both agreeable and econo- mical, and they may be designed in the most architectural forms. Some, built by Mr. Selane, who also ma- nufactures a very beau- tiful description of vases, and other or- naments in artificial stone, have the outside casing of that material ; and these are well adapted for entrance halls and staircases. It must l)e confessed, how- ■iver, that in countries where coal is the prin- cipal fuel, the flues of German stove become so soon coated with soot, that they either do not give out the ne- cessary supply of heat, or they recjuire to be cleaned (which cannot be done without the aid of a bricklayer) so often as to add greatly to the expense of using them. In Germany, where wood is always emi)loye(l for fuel, and consequently for heating these stoves, they are found to answer admirably. In Britain, the best substitute for wood is coke. In most cases, we should prefer a hot-water or a steam apparatus, for the general heating of a house ; but still there are situations in which a brick stove may l)e found most eligible, and under such circumstances we know of none equal to that of Mr. Selane. 2059. Nott's Stove may either be used for general heating, or for the heating of single rooms. The following description of this stove has been sent us by Mr. Nott : — " The pro- duction and the application of heat are two distinct processes, requiring distinct arrange- ments and localities in the construction of a stove. The producing part of any apparatus may be considered as a prism, or cylinder, of about thirty inches in height. The interior is composed of fire-brick, and the exterior of iron. The cavity for receiving coals is nearly twenty inches in height, rising from a base of six inclies by seven inches, or ten inches, as the case may be. The coals are put in at the top, and rest upon a grating of peculiar construction. It is intended that the coals should lie ignited at the bottom, and the draught is through a lateral outlet immediately above the grating. Three fourths of all the fuel lies above this outlet, and, as the draught is not up through the incumbent fuel.
