Chabannes^s Pamphlets on heating bij hot Water. 29 



\ a, Boiler. b, Fire-place. 



c. Ashpit, and admitting air to the fire by the door d. 



e, Pyramid for supplying coal. 



f, Pipe conveying the hot water into the patent cyh'nders g, which are placed 

 on the top of the flue, or in any other convenient place. 



g. Patent cylinders traversed by air-pipes. 



Ji, Pipe communicating from the last cylinder to the lower part of the boiler a, 

 and promoting the circulation of water by its pressure on the rarefied pipe f. 



i. Old flue, to which the fire-place and boiler are adapted, and evaporating [?J 

 the smoke. 



k, Level of the floor of the hot-house. 



Fig. 3. (Jig. 28.) Plan ofa flue described in Fig. 2. (,/^.27.) 



Fig. 4. [j^g. 29.) Section of patent calorifere fumivore fire- 

 place and boiler adapted to two or more hot-beds. 



a. Boiler. b, Fire-place. c, Ash-pit. 



e. The pyramid for supplying coal. 



f. The heated water passing out of the boiler, and circulating underneath the 

 hot-bed in the form of a worm, as seen in Fig. 5. (Jig. SO.), and returning by the 

 pipe g to the lower part of the boiler a, and promoting the circulation of water by 

 its pressure on the more rarefied parts, going off by the pipesyy. 



h h, Section of two hot-beds warmed from one fire, in which is seen the ends of 

 the worms d d. 



Fig. 5. {Jg. 30.) 

 Plan of circulation 

 of water in a hot- 

 bed. 



The above is 

 from the first pam- 

 phlet; the follow- 

 ing, respecting the 

 circulation of hot water in Nos. 36. and 37. Burlington Arcade, 

 is from the other, which is without date, and not paged : — 



