By J Butler from Hunter NY on November 12, 2012
How many inches of run are added to the run of pipe (on center) when adding this 90 degree piece?
By Collin C. - NFI Master Hearth Professional on November 13, 2012
Answer:With the addition of this 90 degree elbow, 7 inches of vertical rise are added. This number has already subtracted the 1/2 inch of overlap between the elbow and the associated straight section of pipe.