THE GRAPE HOUSE. 



11 



augment the heat of the interior of the house, and, 

 being of uncoloured brick, it will continue to give out 



FIG. 6. BOILER AND SECTION OF PIPES FOB EARLY VINERY. 



Reference. art. flow pipes ; BBBB, return pipes. All the pipes should be six-inch. 

 The cost of this apparatus may be estimated at 



s. d. 



For the boiler 600 



Two hundred and forty feet of six-inch pipe, at 



2s. 3d. per foot 26 18 



Two syphon bends 150 



Four elbows 1 15 



As many indiarubber rings wanted as there are 

 joints ; a cistern, and bricks, and the setting, 

 which may be computed at about . . .600 



41 18 



heat for hours after sunset. When however there is 

 no such wall a great deal is lost in this respect. 



