Specifications
14
Figure 14: Venting horizontally with rise.
Figure 15: V
enting with concrete wall behind unit .
Installation
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:
• It is recommended that horizontal through wall installations have 3 to 5 feet (91 to 152 cm) of vertical pipe in the
system to help naturally draft the unit in the event of extreme weather or a power outage.
• 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 draft 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.
• Follow vent manufacturer guidelines for installation of venting. High temp sealant must be used when connecting
vent pipe to the unit’s starter pipe. Improper seals at the vent joints may cause combustion by-products to leak
into the room where installed - seal as required.
THROUGH WALL
VERTICAL RISE HORIZONTAL TERMINATION INSTALLATION - FREESTANDING:
A termination cap is always recommended for this type of install but a stainless steel termination hood or a 45°
elbow may be used in place of the cap.
Figure 14 is the recommended installation set up, venting length is negligible.
Figure 15 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.
Wall framing
Wall thimble
Termination cap
Vertical section of vent pipe
Horizontal frame for thimble
Clean out tee
90° elbow
Wall strap
Wall framing
Wall thimble
Termination cap
Vertical section
of vent pipe
Horizontal frame
for thimble
90° elbow
Concrete Wall
Clean out tee