23
Heat & Glo • VRT-AUB • 2123-980 Rev. H • 5/12
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 COMPO-
NENTS
. 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 combus-
tion 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.
7
Flue Information
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.
CAUTION
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.
B. Use of Elbows
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.
WARNING
Diagonal runs have both vertical and horizontal flue aspects
when calculating the effects. Use the rise for the vertical as-
pect 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).
Horizontal
Vertical
8-1/2 in.
(216 mm)
8-1/2 in. (216 mm)
12 in.
(305 mm)