
Vertical dimensions are based on centerline to centerline of pipe. Horizontal dimensions are based on centerline of pipe to end of termination. Firestop at Ceiling Level Firestop at Ceiling Level VENTING FIREPLACE - TOP (continued) 21759-6-0608 Page 17 MAXIMUM HORIZONTAL RUN WITH NO VERTICAL RISE AND 90° ELBOW MAXIMUM HORIZONTAL RUN WITH MINIMUM VERTICAL RISE AND 90° ELBOW minimum Figure 25 Figure 24 MINIMUM HOLE LOCATION DIMENSIONS FOR THROUGH THE WALL HORIZONTAL INSTALLATIONS WITH 90 DEGREE EL