204 



HEATING AS APPLIED IN HORTICULTURE. 



represents the boiler ; b flow and return over the sluices with boxes the depth of 

 gutters ; c sluices made of zinc, 3 by 9 the bed. " The smoke is carried off in a 

 inches; d return-pipe ; e (fig. 266) covers flue f } in ground-plan, fig. 266, which 



i Fig. 266. 



passes along the back of the house, by 

 which a great saving of fuel is effected ; 

 and when the extra heat is not required, 

 it is allowed to pass off in a chimney con- 

 nected with the boiler and regulated by 

 a damper, g is the walk or passage along 

 the back of the house, in the usual way. 

 The boiler employed is one of Stephen- 

 son's third size, and is placed within the 

 house, as may be seen by the section, 

 fig. 267. The tanks are formed of pave- 



Fig. 267. 



ment for their bottoms; the sides and 

 divisions of bricks, three courses on bed. 

 The whole is wrought in cement and well 

 plastered. The covering of the tanks is 

 slate l^-inch thick. A double gutter 

 passes along the front and the end nearest 

 the fire, and has very properly a circula- 

 tion of its own independent of the tank." 

 — See Gardeners Chronicle. 



We consider this a very well arranged 

 house, and highly creditable to the in- 

 ventor. We may observe that it is 

 divided into two compartments, which 

 may, by means of the various sluices, be 



._ 



heated altogether or separately at plea- 

 sure. The length of one division is 30 

 feet 6 inches, and of the other 25 feet 

 6 inches. The width is 12 feet 4 inches 

 within, of which the flue at the back 

 occupies 12 inches, the footpath 2 feet 

 2 inches, the tank 8 feet, and the gutters 

 1 foot two inches. 



A sensible and practical mode of heat- 

 ing and ventilating combined is given by 

 D. T. F. in " Gardeners' Journal," of 

 which the annexed diagram and descrip- 

 tion will give a sufficient idea. Fig. 268 

 is the section, and fig. 269 ground-plan : 

 "a spaces where bricks are left out of the 



Fig. 268. 



sides of the chamber for the admission of 

 hot air into the house ; b ventilators in 

 the outside wall for the admission of ex- 

 ternal air — they are so constructed as to 

 cause the air to pass through the hot-air 

 chamber before it enters the house; / 

 hot-water tank, formed of brick and 

 cement, stone, slate, or tiles, and covered 

 with slate— it rests on each side on 9-inch 

 walls; g hot-air chambers, rendered so 

 by the heat evolved from the bottom of 



