Nectre Fireplaces N550 Installation Instructions Manual page 12

Installation
Factory Built Chimney
When a metal prefabricated chimney is used, the manufacturer's installation
instructions must be followed. You must also purchase (from the same
manufacturer) and install the ceiling support package or wall pass-through
and "T" section package, firestops (where needed), insulation shield, roof
flashing, chimney cap, etc. Maintain proper clearance to the structure as
recommended by the manufacturer. The chimney must be the required
height above the roof or other obstructions for safety and proper draft
operation. See below for chimney termination requirements.
Figure 6
Factory built chimney requirements
Maintain 1"
Clearance
Listed Chimney
Ceiling Support
Chimney
Floor
Protector
12
Listed Cap
Storm Collar
Flashing
Combustible
wall
Listed Chimney
Combustible
Ceiling
Joists
Chimney
Connector
To Stove
* Refer to
Clearances to
Combustibles
www.nectre.com/usa-nectre
Attic Insulation
Shield
Specified
Clearance
Ceiling
Support