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B-vent freestanding fireplace, Venting installation, Continued – Vanguard Heating SBVBN(A) User Manual

Page 10

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10

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B-VENT FREESTANDING FIREPLACE

105500

VENTING
INSTALLATION

Continued

CHECKING VENT CAPACITY

Complete all gas piping, electrical, and vent
connections. After adjusting the fireplace
and lighting the main burners, allow a couple
of minutes for warm-up. Hold a lighted
match just under the rim of the draft hood
relief opening. Proper venting will draw the
flame toward or into the draft hood. Im-
proper venting, indicated by escape or spill-
age of burned gas, will cause match to
flicker or go out. Smoke from a cigarette
will also be pulled into the draft hood if the
vent is drawing properly.

Figure 22 - Test for Proper Venting

• Complete familiarity with chimney con-

dition, height, size, clearance to combus-
tibles and other factors is essential.

CHIMNEYS

NOTICE: Consult the authority
having jurisdiction in your area
regarding masonry chimney vent-
ing applications.

NOTICE: A complete chimney
inspection by a qualified person
should be performed.

• Appliances using B-vent connectors to

vent into a masonry or factory-built
chimney should not exceed 1

1

/

2

feet in

length for every inch of connector diam-
eter (3" vent connector has a maximum
4

1

/

2

foot length; 5" connector has maxi-

mum 7

1

/

2

foot length).

• Oversized chimneys should be relined

with appropriate listed relining systems.

• Cleanout access may be required.

NOTICE: Consult the authority
having jurisdiction in your area
regarding listed chimney liner
venting applications.

WARNING: Operation of im-

properly installed and maintained
venting system could result in
serious injury, property damage,
or loss of life.

RELINING SYSTEMS

• Suitability and approval of relining ma-

terials should be determined.

• Condition, size, height, and termina-

tion of the chimney to be relined must
be determined.

• No substitution of components should

be made.

• Joints and connectors should be made

according to manufacturer’s instructions.

Figure 23 - Straight Installation into
Masonry Chimney

Figure 24 - Typical Straight Installation
with Listed Chimney Liner

INSTALLING VENT SYSTEM
IN A CHASE

A chase is a vertical box-like structure built
to enclose venting that runs along the out-
side of a building. A chase is not required for
such venting.

NOTICE: Treatment of firestops
and construction of the chase
may vary from building type to
building type. These instructions
are not substitutes for the re-
quirements of local building
codes. You must follow all local
building codes.

Note:

When installing in a chase, you should

insulate the chase as you would the outside
walls of your home. This is especially im-
portant in cold climates. Minimum clear-
ance between vent pipes and combustible
materials such as insulation is 1".