THE GRAPE HOUSE. ll 
augment the heat of the interior of the house, and, 
being of uncoloured brick, it will continue to give out 
Fie. 6.—BOILER AND SECTION OF PIPES FOR EARLY VINERY. 
Reference.—a a, 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 >.  & OO 
Two hundred and forty feet, ‘g six-inch pipe, at 
2s. 3d. per foot . : : 2618 0 
Two syphon bends - - = - eo ko, 0 
Four elbows . - en OG Sha 
As many indiarubber rings wanted as there are 
joints ; a cistern, and bricks, and the setting, 
which may be computed atabout.. . ie oa S 
£4118 0 
heat for hours after sunset. When however there is 
no such wall a great deal is lost in this respect. 
