226 



THE GRAPE. 



wall, and about a foot from the back wall, and returning 11.0 a 

 chimney in the back wall over the furnace. 



For the sake of permanence, however, a vinery of this kind 

 is usually built of brick ; the ends and front wall eight inches 

 thick ; the back wall a foot thick or eight inches with occa- 

 sional abutments to increase its strength. In fig. 92 (I) is shown 



a simple plan of a 

 vinery of this kind. 

 In this the surface 

 of the ground is 

 shown at a, below 

 which, the founda- 

 tion walls are sunk 

 three feet. Above 

 the surface the from 

 wall &, rises two 

 feet, the back wall 

 c, twelve feet, and 

 the width of the 

 house is fourteen 

 feet. On these walls 

 are placed the raft- 

 ers, from three to 

 four feet distant, 

 with the sashes in 

 Fig. 92. Plan and setfton of a vinery, with fire-heal, two lengths. 

 In the present example the flues are kept out of the way, and 

 the space clear, by placing them in a square walled space, di- 

 rectly under the walk ; the walk itself being formed by an open 

 grating or lattice, through which the heat rises freely. The 

 arrangement of the flue will be better understood by referring 

 to the ground plan (II.) In this the furnace is indicated at d, 

 in the back wall ;* from this the flue rises gradually to e, 

 whence it continues nearly the length of the house, and return- 

 ing enters the chimney at f. For the convenience of shelter, 

 firing, etc., it is usual to have a back shed, g, behind the back 

 wall. In this shed may be a bin for wood or coals, and a sunk 

 area (shown in the dotted lines around d, f,) with steps to de- 

 scend to the furnace and ash-pit. f There are two doors h, in 

 the vinery at either end of the walk. 



* This furnace should be placed two feet below the level of the flue at e, in or- 

 der to secure a draught, after which it may be carried quite level till it enters the 

 chimney. An air chamber may be formed round it, witn a register to admit heat- 

 ed air to the house when necessary. A furnace fourteen inches square and deep, 

 with an ash-pit below, in which anthracite coal is burned, will be found a very 

 easy and perfect mode of heating a house of this width, and thirty feet long. 



t The most perfect vinery that we have seen in this country is one of two hun- 

 dred feet long at the country residence of Horace Gray, Esq., Newtown, near 

 Boston. It is built of wood, with a curved span roof, after a plan of Mr. Gray's 

 which seems to us to combine "fitness and beauty in an unusual degree. 



