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4/12
Heatilator • Constitution EPA Fireplace • 480-1091H
Page 31
Installer Guide
5
Getting Started
A. Typical Fireplace System
Figure 5.1 Typical Fireplace System
Termination Cap
Chimney penetrates roof
preferably without affecting
roof rafters
Offset/Return
(with hanger straps)
Attic insulation shield
(not shown) must be
used here to keep
insulation away
from chimney if
attic is insulated
Storm Collar
Framing headed
off in ceiling joists
Mantel
Decorative facing
and trim
Protective metal
hearth strip(s)
Hearth extension
Factory-built fireplace
Non-combustible
roof flashing maintains
minimum clearance
around chimney
Additional lateral
support for chimney
above roof (or enclosed
in chase) if needed
Chimney system
Combustible
framing/header
on top of V-shaped
standoffs (spacers)
Enclosed space above
and around fireplace
Support straps
on rafter supports
chimney (not shown)
Outside
combustion air
Outside
combustion air