Installation
9.The pipe must extend at least 12” (30 cm) away from the building. If necessary, bring another length of pipe (PL type) to the outside of the home to connect to the first section. Do not forget to place high temperature silicone around the pipe that passes through the thimble.
10.Install a vertical pipe, or if all requirements for direct venting are met, install vent termination. The stainless steel cap termination manufactured by the vent manufacturer is recommended. However, when the vent terminates several feet above ground level and there are no trees, plants, etc. within several feet, a 45° elbow can be used as termination. The elbow must be turned down to prevent
rain from entering.
NOTE:
•Some horizontal through wall installations may require a “T” and 3 to 5 feet (91 to 152 cm) of vertical pipe outside the building to help naturally draft in the unit.
•This may be required if a proper burn cannot be maintained, after the stove has been tested and the airflow set.
•This is due to the back pressure in the exhaust caused by airflow around the structure.
•All sections of pipe must have three (3) screws evenly spaced and all horizontal and vertical vent sections located within the house must have a bead of high temperature silicone installed on the male end of the pipe before installation to create a gas tight seal.
THROUGH WALL WITH VERTICAL RISE AND HORIZONTAL TERMINATION INSTALLATION - FREESTANDING:
A 45° elbow with a rodent screen may be used in place of the termination cap (or stainless steel termination hood).
Figure 13 is the recommended installation set up.
Figure 14 is the installation to use if there is a concrete or retaining wall in line with exhaust vent on a pellet stove. The termination must be 12” (30 cm) from the outside wall and 12” (30 cm) above the ground.
Termination cap |
90° elbow |
Wall framing |
Vertical section of vent pipe |
Horizontal frame for thimble |
Wall strap |
Clean out tee |
Wall thimble |
Horizontal frame |
|
for thimble | Termination cap |
Wall thimble
90° elbow
Vertical section 
of vent pipe
Wall framing
Concrete Wall
Clean out tee
Figure 13: Venting horizontally with rise.
Figure 14: Venting with concrete wall behind unit .
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