Part 4 - General venting
Figure 4.10 Flue terminal hole cutting
4.
Determine the wall thickness and, if necessary, cut the wall terminal to the desired length. Remove all
burrs
from the cut terminal.
NOTE: The length of the flue terminal is correct if outer wall plate, or rosette, is flush with the outside
wall. NOTE: When the flexible wall seal (rosette) is used, it is to be installed as shown in figure 4.11.
Figure 4.11 Correct position wall seal
5
. To prevent rainwater from collecting in the inlet air system:
Ensure that the flue terminal is not installed upside down. See figure 4.12.
Insert the flue terminal into the drilled hole. The air supply pipe for the flue terminal is to be installed
either level or pitched slightly toward the outside; 10 mm per meter (0.1 inch per feet) max.
Figure 4.12 Correct slope
6
. Seal the gap around the flue terminal with water resistant sealant or caulk. Install the wall seals around the
flue
terminal and attach them with the screws provided. See figure 4.13.
.
Figure 4.13 Sealing gap
24