Monessen Hearth B-VENT SBV500 - Manual (Page 11)

62D4036 11
BBV, SBV Series Natural Vent Gas Fireplaces VENT INSTALLATION
FIRESTOPS
• Locate chimney centerline dimension from a com-
bustible back wall. Figures 2 & 3. Minimum firestop
dimensions are found in the vent manufacturer’s in-
structions. Clearances to combustibles may also be
found on the sides of the flue sections.
• Avoid cutting any load-bearing framing members.
Figures 6 & 7
To position firestop refer to Figures 6 & 7. Only one firestop
is required per frame.
FP2020
firestop
10/08
Nails
Firestop
Spacer
Joist
FP2020
Nails
Firestop
Spacer
Joist
Figure 6 -
Install Firestop in Attic
Figure 7 -
Install Firestop
in Ceiling
NOTICE: When installing in a chase, you should insu-
late the chase as you would the outside walls of your
home. This is especially important in cold climates.
Insulation should be considered a combustible ma-
terial. Maintain proper clearances to all combustible
materials.
NOTICE: Treatment of firestops and construction of
the chase may vary from building type to building
type. These instructions are not substitutes for the
requirements of local building codes. You must fol-
low all local building codes.
TERMINATE THE PIPE
• Maintain proper clearance to the roof using the
chart below.
• Vents shall terminate at least 8’ from a vertical
wall.
• Maintain 2’ minimum clearance to any other gas
terminations or plumbing vents, as measured from
the outside edge of the terminations or vents.
H
X
12”
FP2405
min chimney ht
Figure 8 -
Minimum Chimney Height
FP2405
Termination Height Table
Use this table to determine the minimum height avove
the roof
Minimum Height
Roof Pitch Feet Meters
Flat to 7/12 1 0.3
Over 7/12 to 8/12 1.5 0.46
Over 8/12 to 9/12 2 0.61
Over 9/12 to 10/12 2.5 0.76
Over 10/12 to 11/12 3.25 0.99
Over 11/2 to 12/12 4 1.22
Over 12/12 to 14/12 5 1.52