Lennox ML196UHE Series


TABLE 14
Maximum Allowable Exhaust Vent Lengths With Furnace Installed in a Closet or Basement Using
Ventilated Attic or Crawl Space For Intake Air in Feet


Standard Termination at Elevation 0 - 2000 ft


1-1/2” Pipe 2” Pipe 2-1/2” Pipe 3” Pipe
Model Model Model Model
030 045 070 090 110 135
030
045
070 090 110 135
030
045
070 090 110 135
030
045
070 090 110 135
1   
  
   

   

    
  

66   9         
 

61  

        


  19         
            
6   9         
  

        
     

    
9  16        
  11        
Standard Termination at Elevation 2001 - 10,000 ft


2” Pipe 2-1/2” Pipe 3” Pipe
Model Model Model
030/045 070 090 110 135 030/045 070 090 110 135 030/045 070 090 110 135
1   
 
 96  

    
 66    91       
 61 

        
           
           
6 

        
   66 

    
   61      
9         
         