A.O. Smith BTH-120 - Venting Requirements; Approved Materials; Pipe Size Requirements; Maximum Equivalent Lengths

24
         

MINIMUM EQUIVALENT LENGTHS
Three Inch Pipe
          
           
         

Four Inch Pipe
         
            
         

MAXIMUM NUMBER OF ELBOWS
Three Inch Pipe


          
       

Four Inch Pipe

            


FACTORY SUPPLIED FITTINGS
          
       
       
       
    

TABLE 7
Number of
90° Elbows
Installed
3 Inch Pipe 4 Inch Pipe
Maximum Feet (Meters) Maximum Feet (Meters)
  
  
  
  
  
  
4 INCH EXTENDED VENT TERMINATIONS




OPTIONAL CONCENTRIC TERMINATIONS


      


Concentric Vent Termination Part Numbers:
 
VENTING REQUIREMENTS
APPROVED MATERIALS


 

 
 


 
FIELD SUPPLIED FITTINGS



        

 

 

PRIMER AND CEMENT
        


          
      

        

PIPE SIZE REQUIREMENTS






NOTE:




MAXIMUM EQUIVALENT LENGTHS
Three Inch Pipe
         
          
        
            
         

Four Inch Pipe
         
          
        
