Filter
Top Products
Version 2.0b 30
FIGURE 14: VERTICAL VENT SYSTEM (below grade) INSTALLATION
FIGURE 14 demonstrates a Harvester installed below grade (such as in a non-walkout basement.) Do
not substitute an elbow (of any angle) in place of the clean out tee shown in FIGURE 14. Use of an
elbow will limit exhaust gasses and cause the combustion chamber to operate inefficiently. A clean out
tee should be checked regularly during the first six months of use until the homeowner determines the
frequency of cleaning required to ensure proper operation of the Harvester. A certified installer should
take into account all site specific conditions that may impact the installation and operation of the below
grade Harvester.
Type L or Type PL Pellet Vent systems, offered in 3” or 4” diameters, has been designed and approved
for use in pellet and corn stoves and low temperature venting systems. Type L vents is rated for
temperatures up to but not exceeding 570
0
F. Pellet venting systems feature a complete product line that
includes wall thimbles for horizontal through-the-wall installations, support boxes for both flat and
cathedral ceiling installations and even decorative wall thimbles and ceiling covers are available. Vent
pipe is normally designed as double-wall, air-insulated or full insulated liner that provides superior
performance and safety. Normally the inner wall is stainless steel; the exterior wall is galvalume steel
that provides maximum heat and corrosion resistance.
Pellet vent system installations should avoid long horizontal runs, excessive use of elbows or failing to
provide for clean-out of the vent system. Be sure to use a pipe adapter that ensures a proper connection
from the appliance to the vent system. Do NOT use a 90-degree elbow off the back of the Harvester.