Flue Information; Flue Components; Use Of Elbows; Measuring Standards - Heat & Glo VRT-BZ-N-AUB Owner's Manual

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Flue Information

A. Flue Components
These models are approved to use Hearth & Home
Technologies series pipes, components and termination.
Approved components are labeled for identification. This
pipe is tested and listed as an approved component of the
stove.
DO NOT USE FIELD-FABRICATED FLUE COMPONENTS.
Refer to the flue manufacturer's instructions.
This product is approved to be flued either horizontally,
through the side wall or vertically through the roof. You may
flue through a Class A or masonry chimney if an approved
adapter is used.
This gas stove is a balanced flue gas stove. All combustion
air must come directly from the outside of the building. The
flue pipe for this unit consists of an inner and an outer pipe.
The inner pipe carries the gas stove exhaust out of the
system, and the outer pipe brings fresh combustion air into
the gas stove.
• A round support box/wall thimble or heat shield is required
when the flueing passes through a combustible wall.
• A support box or ceiling firestop is required when the flueing
passes through a combustible ceiling.
• Roof flashing and a storm collar are required when flueing
passes through the roof.
• Follow instructions provided with the flueing for installation
of these items.
!
Fire Hazard.
Explosion Risk.
Asphyxiation Risk.
Do NOT connect this gas stove to a chimney
flue serving a separate solid-fuel or gas burning
gas stove.
• Flue this gas stove directly outside.
• Use separate flue system for this gas stove.
May impair safe operation of this gas stove or
other gas stoves connected to the flue.
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WARNING
Heat & Glo • VRT-AUB • 2123-980_R14 • 12/14
B. Use of Elbows
!
ALL flue configuration specifications MUST be followed.
• This product is tested and listed to these specifications.
• Appliance performance will suffer if specifications are not
followed.
Diagonal runs have both vertical and horizontal flue aspects
when calculating the effects. Use the rise for the vertical
aspect and the run for the horizontal aspect (see Figure 7.1).
Two 45º elbows may be used in place of one 90º elbow. On
45º runs, 12 in. (305 mm) of diagonal is equal to 8-1/2 in.
(216 mm) horizontal run and 8-1/2 in. (216 mm) vertical run.
A length of straight pipe is allowed between two 45º elbows
(see Figure 7.1).
Vertical
Figure 7.1
C. Measuring Standards
Vertical and horizontal measurements were made using the
following standards.
• Pipe measurements are from center line to center line.
• Horizontal terminations are measured to the outside edge
of termination cap. See Figure 7.3.
• Horizontal pipe should be installed level with no rise.
CAUTION
8-1/2 in.
(216 mm)
Horizontal