American Energy Systems O2 Catalytic - Manual (Page 75)

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If there is any doubt, hire a third party inspector to verify the installer’s work when complete. To avoid, costly mistakes or
repairs, ask questions and verify the installation work. If there is still any doubt, contact Country Flame or a local
authorized dealer to obtain the name of “industry experts” who can provide the correct answer.
When modifying, fixing, or installing a brand new chimney system, it is important to obtain knowledgeable help from a
certified professional. The homeowner should select an experienced professional. This is necessary because each home,
each location, each chimney system has unique requirements and variables. The more experience a chimney professional
has, the more likely the results will please the homeowner for years to come.
THIMBLE INSTALLATION
Catalytic stove installations that require a connection from the stove through a combustible wall to a masonry or
prefabricated chimney require either a UL Listed thimble (wall penetration assemblies) or the methods outlined in the
National Fire Association Standard 211, which is outlined below. It is important that the homeowner or installer be well
versed in these variations and understands which one is best suited for their application. The following diagrams provide
examples and explanations of chimney connector systems and clearances from combustible walls for residential heating
appliances. During any installation, it is important to consult with the local code authority or an installation professional to
ensure your installation is properly done. The following additional requirements will apply to FIGURE 31 through
FIGURE 34:
1 Insulation material used as part of a thimble wall pass-through system shall be constructed of noncombustible
material and shall have a thermal conductivity of 1.0 Btu-in/hr-ft
2
-
0
F (4.88 kg cal/hr-m 2 - 0 C) or less.
2
All clearances and thicknesses are minimums; larger clearances and thicknesses shall be permitted.