BOILER No. 14. 



105 



BOILER No. 14, LONGITUDINAL SECTION. 



Dimensions of Boiler No. 14. 



Diameter of shell, 



Length between heads and length of tubes, 

 Number of tubes 3 inches outside diameter, 

 Length of combustion chamber, ...... 



Inside diameter of combustion chamber, 



"Diameter of two openings to combustion chamber, 



Area of water-heating surface, ...... 



Area of steam-heating surface, 



Area of grate surface, ........ 



Area through tubes, ........ 



Area through flue, 



Width of air spaces and metal bars in grates, . Air 3-8 in.. 



Distance of grate to shell, 



Height of chimney, ........ 



Ratio of water-heating surface to grate surface, . 



Ratio of grate to tube area, ....... 



48 



14 



45 



38 



42 



14 

 58G 



43 



21.2 sq. ft 



1.9 sq. ft 



2.2 sq. ft 



metal 5-8 in 



17 in. 



77 ft. 



27.7 to 1 



11.4 to 1 



in. 

 ft. 



in. 

 in. 

 in. 



sq. ft. 

 sq. ft. 



