TABLE, 



Exhibiting the results of experiments made lo determine the comparative !<>s* of heat 

 tained by using apparatus of different constructions, for the combustion of fuel 





sua 



No. 



Description of Apparatus used. 



Time the room to 

 maintained at the 

 same temperature 



in the combustion, 

 of equal wet. 

 fuelcomparcd w ith 

 apparatus No 9. 



Weight of fuel re- 

 ij'iin ilby each ap- 

 paratus to main- 

 tain the room the 

 same time and 

 temperature cum 

 pared with 



CHIMNEY FIRE-PLACE, of ordinary construction for burning 

 Wood, 



OPEN PARLOl'R GRATE, of ordinary construction for burning 

 anthracite Coal, 



OPEN FRAN REIN STOVE, with one elbow joint and 5 feet 

 of six inch pipe placed vertically, the fire-place being closed 

 with a fire-board, 



CAST IRON TEN PLATE STOVE, with one elbow joint and 

 five feet of four inch pipe placed horizontally, entering the 

 fire-board 



SHEET IRON CYLINDER STOVE, the interior surface 

 coated with clay lute, with one elbow j"itit ami .> feet 

 of two inch pipe placed horizontally, entering the tir>- 

 board, .......... 



SHEET IRON CYLINDER STOVE, as before describe.!, with 

 three elbow-joints, 4J feet, and 9 feet of two inch |>i|>' . 

 the whole placed as follows: 3j feet horizontally, • fed 

 vertically, tor an ascending current, and 5 feet vertically fbl 

 a descending current, entering the fire-board, 



SHEET IKON CYLINDER STOVE, as beft lescribed, with ] 



three elbow joints, 4{ feet, and 9 li't ..I two inch pipe, placed 

 as follows: nine inches wrtn ally and \Zi feet horizontally 

 entering the fire-board i 



SHEET IRON CYLINDER STO\ K. a- In fore <!,•,, .,!,.■, I. with 

 nine elbow joints, measuring 134 ^ eet "' <»" inch pipe, enter, 

 ing the fire-bo. u d, 



SHEET IRON I fLINDEB 9TOVB, aa before described, with 



4C feet ol two inch pipe, as used in the course of experiment! 

 on fuel, .....••••• 



10 

 18 



'•: 



43 

 67 





Bfl 







1000 



053 





i:: 





100 



