Hearth & Home Technologies • BV4236DBI, BV4842DBI • 2209-900 Rev. P • 4/14
24
7
7
Vent Information and Diagrams
B. Vent System Con
fi
guration
CAUTION! Risk of Fire!
ALL vent con
fi
guration speci-
fi
cations MUST be followed. This product is tested and
listed to these speci
fi
cations. Appliance performance will
suffer if speci
fi
cations are not followed.
Rise to Run Ratio = 2:1
Maximum Total Horizontal Run = 30 Feet
Minimum Total Vertical Rise = 12 Feet
Maximum Total Vertical Rise = 60 Feet
Maximum Number of Elbows: Two 90º or Four 45º
Figure 7.1
A. Vent Guidelines
WARNING! Fire Risk/Asphyxiation!
This appliance re-
quires the speci
fi
ed pipe for operation. Incorrect pipe may
cause spillage, condensation and overheating.
Figure 7.2
These models require the following size B-vent double
wall, or single wall rigid or
fl
ex vent pipe.
METAL
PLUMBERS' STRAP
MAXIMUM HORIZONTAL RUN IS 50%
OF VERTICAL. HORIZONTAL RUN
CANNOT BE MORE THAN 30 FT.
VENT SUPPORTS
ARE PER VENT
MANUFACTURER'S
SPECIFICATIONS.
METAL
PLUMBER’S
STRAP
12 FEET
MINIMUM
VENT SUPPORTS ARE PER
VENT MANUFACTURER’S
SPECIFICATIONS
MINIMUM CLEARANCES
ARE PER VENT
MANUFACTURER’S
SPECIFICATIONS
• Follow pipe manufacturer’s installation guidelines when
installing the appliance.
WARNING! Fire Risk/Explosion/Asphyxiation! DO
NOT
connect this gas appliance to a chimney
fl
ue serving
a separate solid-fuel or gas burning appliance.
• Vent this appliance directly outside.
• Use separate vent system for this appliance.
May impair safe operation of this appliance or other appli-
ances connected to the
fl
ue.
WARNING! Risk of Fire or Explosion!
Insulation and
other combustibles must not infringe on clearances.
• ALWAYS maintain speci
fi
ed clearances around venting
and
fi
restop systems.
• Install
fi
restops as speci
fi
ed.
Failure to keep insulation or other material away from vent
pipe may cause
fi
re.
Figure 7.3
45 DEGREES
ELBOW
90 DEGREES
ELBOW
OFFSETS EXCEEDING
45 DEGREES ADAPT
HORIZONTAL LIMITATIONS
MAXIMUM
HORIZONTAL
30 FEET
MINIMUM
VERTICAL
9 FEET
Note:
Maximum horizontal
distance is 50% vertical vent
height.
Note:
Horizontal runs must have
minimum rise in accordance with
mechanical codes.
Model
Pipe Size
BV4842DBI
5 inch
BV4236DBI
5 inch
