Troubleshooting guide

16
Figure 7 (Inside Wall)
2. Vertical Vent Terminal (Through the Roof - Optional)
(a) Determine the exact location where the roof vent terminal will exit the roof, making sure the venting system
clears all obstructions. For pitched roofs, the vent cap must be the distance above the roofline as specified in
the local codes, or in the absence of local codes refer to the latest edition of the National Fuel Gas Code. The
top of the roof terminal may extend up to 2 1/2 ft. (76.2 cm) above the roofline as needed.
(b) Run the coaxial venting system to the proper distance below the roof sheathing required for the correct
distance of the roof terminal above the roof surface. See the following sections on installing the rest of the
venting system.
(c) Cut a minimum 8 1/2 inch (21.6 cm) minimum diameter hole centered in the desired location for the roof
terminal. (See Figure 8).
(d) Center the roof flashing over the hole using either the flat roof flashing or universal flashing for pitched roofs.
(e) Slip the storm collar supplied with the roof flashing kit over the outside of the vent terminal and align with the
vent pipe end below roof opening. Insert the terminal into the vent pipe.
(f) Fasten the roof flashing to the roof with nails. Seal the vent terminal and flashing to the roof.
(g) Install the gasketed clamp around the joint between the vent terminal and vent pipe.
Figure 8