Drolet ECO-45 User Manual

 
 
Let’s imagine an installation consisting of a horizontal vent coming out at the back of the stove on a total 
distance of 8 feet.  This horizontal run is followed by a Tee and a 6-foot vertical rise.  This type installation is not 
acceptable.  As you can see, the vent termination is clearly outside the allowed configuration zone on the chart.  
The venting system does not have at least one foot of vertical rise for each foot of horizontal run. 
 
Instead, if the installation consisted of a horizontal vent coming out at the back of the stove on a total distance of 
4 feet, followed by a Tee and a 6-foot vertical rise, it would be acceptable.  The installation would end be within 
the allowable configuration zone on the chart since it would have at least one foot of vertical rise for each foot of 
horizontal run. Furthermore, the total vertical rise would be at least 3-foot high. 

If you plot your venting 
system configuration on 
this chart, your wall or 
roof termination should be 
within the grid.