11
Note:
The minimum vertical rise (exhaust vent) is 10 feet (3.1 M) and the
maximum vertical rise is 35 feet (10.7 M). These dimensions are measured
from the starting collars of the unit to the end of the vent pipe.
The fireplace and fireplace chimney must be clean and in good working
order and constructed of noncombustible materials. Inspect chimney
cleanouts for proper fit and seal.
* Other approved vent components include; Standard Simpson Dura-
vent Co-linear Chimney Liner Kit, Direct-Vent Termination #991, Liner
Termination Kit (includes termination connector and flashing) #923GK
and 3" x 35' Alum Flex #2280
Venting Installation
Your appliance must be vented to the outside in accordance with the
current edition of the National Fuel Gas Code ANSIZ223.1 (In Canada,
the current CAN/CSA B149.1 installation code). The insert must not be
connected to a chimney flue serving a separate solid fuel burning appliance.
This gas insert requires a 3” diameter listed flex liner. The vent should
terminate with a listed directvent termination cap. The chimney should be
sealed around the cap to prevent air and rain from entering the chimney.
Adhere to the vent manufacturer's instructions for installation and vent
termination. These appliances are approved for use with the following
vent kits.
Vertical Cap
Termination
Connector
Exhaust
Intake
Combustion Air Intake
The existing fireplace chimneys
may take various contours
which the flexible liners will
accommodate. However, keep
the flexible liner as STRAIGHT
as possible, avoid unnecessary
bending.
Liner Requirements:
Vertical Height Min. = 10 ft. (3.1 M)
Vertical height Max. = 35 ft. (10.7 M)
Note: Measured from flue collar on
unit to the end of the vent pipe or liner
Use 3" (76 mm) diameter listed gas
vent liner (UL1777 ONLY) for the
EXHAUST
Use 3" (76 mm) diameter listed
liner (UL 181 or UL1777) for the
AIR INTAKE.
The flexible vent pipe
must NOT be allowed to
sag behind insert or in
fireplace flue.
Make sure that both liners will pass through existing damper area. Remove
or lock damper to allow the passage of the flexible liners. If the damper
will not allow the passage of both liners, DO NOT PROCEED FURTHER.
(If fireplace is masonry) Consult a local mason for removal of the damper
without risk of structural damage or leakage (if the fireplace is factory
built) The appliance may NOT be installed into the fireplace.
Figure 6b
WARNING
Direct-Vent Fireplace Insert Vent Requirements - Use liner
listed to UL181 (Factory-made Air Ducts And Air Connec-
tors) or UL1777 (Chimney Liners) for the AIR INTAKE. Use
liner listed to UL1777 ONLY for the EXHAUST.
Do not substitute the heat-rated flex liner (UL1777) for the
exhaust with any other type liner or a fire may result caus-
ing property damage, personal injury or loss of life.
The standard cap in Termination Kit TKDVI, and in
Vent Kit DV3FK35
is a high wind cap
Vent Kits
Cat. No.
Model
Description
H0909
FKDVI
Flex Liner Kit, DVI 3” X 35’ (requires 2, one for
exhaust and one for intake)
TKDVI
TKDVI
Termination Kit, DVI (termination cap and flashing)
DV3FK35 DV3FK35 Flex Liner and Termination Kit, 3" X 35' (includes 2
flex liners, termination and gear clamps)
INSTALLATION
Air Inlet Liner (for combustion air) When
terminating the air inlet liner at this point, a
positive flue connection is required (to ensure
combustion air is drawn down the chimney
only).
Exhaust 3" (75mm) UL
1777. A full length liner
is required from the
exhaust outlet on appli-
ance to center collar of
termination cap.
Positive Flue Con-
nection (sealing
fireplace throat
using a noncombus-
tible seal-off plate
or insulation).
The outside air inlet does not
require a full reline (if intake
liner is terminated in chimney
and a positive flue connection
is achieved as specified).
Ai
r I
nl
et
Ex
ha
us
t
Ai
r I
nl
et
Existing Fireplace Flue
(chimney)
Masonry and Factory Built Fireplaces
Figure 6a - Terminating Air Inlet in Chimney
NOTE: Terminating the air intake liner as shown here may not be al-
lowed by some local codes. Check with the authority having jurisdiction
for your area.
Vertical Venting
The vent pipes must be connected to the proper collars on the unit and
the exhaust vent pipe must be connected to the termination cap or the
unit will not operate.
The combustion air intake pipe can be connected to the termination cap
(see
Figure 6b
) or it can terminate inside the chimney (see
Figure 6a
).
If combustion air intake pipe is terminated inside the chimney and not
connected to the actual termination cap the bottom opening of the chim
ney (chimney throat) must be sealed around the vent pipes. Use a non
combustible sealoff plate (i.e. 22 gage sheet steel) or unfaced fiberglass
insulation (8 lb per square foot density minimum) to seal around the vent
pipes. Whichever “seal off” method is used must effectively seal the area
to prevent room air passage to the chimney of the fireplace. The insulation
may give off an odor during the first hour of operation.
