P
AGE
14
I
NSTALLATION
( C
ONTINUED
)
Chimney Height
•
Minimum 15'
system height
(measured from the
base of the
fireplace)
•
Maximum 35'
system height
(measured from the
base of the
fireplace)
?
In some
problematic
situations,
additional chimney
height above the
specified
minimums may be
necessary to reduce
wind-induced
down drafting and
back puffing, or to
increase draft,
thereby improving
fireplace operating
characteristics.
R e q u i r e d
C h i m n e y
E q u i p m e n t
Chimney must be totally
enclosed when passing
through living space with a
minimum 2" clearance to
combustibles.
3' Min.
2' Min.
10'
System Height
35' Max.
15' Min.
2" Min. Air
Space to
Combustibles
Rain Cap
Storm Collar
Flashing
Firestop Between Floor Levels
Attic Firestop (with insulation shield)
Cooling
Vent
!
Depending on the manufacturer and where the chimney is to be installed, chimney supports, roof
braces, radiation shields, attic insulation shields, attic enclosures, spark arrestors, locking bands,
etc... may be required as part of the chimney system. The manufacturer's installation instructions,
which are reviewed by the listing agency, specifies when and where each of these components must
be used. Follow the manufacturer's instructions for the use of flashing and an adjustable storm collar
at the roof line to prevent water from entering the house. Manufacturers require that chimneys
extending beyond a certain height above the roof (frequently above 5') must also be braced.
