Regency Fireplace Products U39-NG12, Owners & Installation Manual, Page: 23 / 60

Regency
®
U39-12 ULTIMATE™ Freestanding Gas Stove
| 23
installation
NOTE: For Snorkel terminations in ABOVE
grade installations, follow national or local
code requirements.
Diagram 3a
Note: Riser Vent
is only for use
in above grade
terminations.
U39:
59-3/4" (1518mm)
Diagram 2
Note:
a) The horizontal run of vent should have a 1/4 inch
rise for every 1 foot of run towards the termination.
Never allow the vent to run downward. This could
cause high temperatures and may present the
possibility of a fire.
b) The location of the horizontal vent termination on
an exterior wall must meet all local and national
building codes, and must not be blocked or
obstructed. See instructions in the "External Vent
Terminal Locations" section.
c) Snorkel Terminations:
For installations requiring a vertical rise on the
exterior of the building, 14-inch and 36-inch tall
Snorkel Terminations as shown in Dia. 3 are
available, as well as the standard Riser Vent, see
Dia. 3a. Follow the same installation procedures as
used for standard Horizontal Termination. NEVER
install the snorkel upside down.
*Dia 3, 3a & 4: As specified
in CGA B149 Installation
Code. Local codes or
regulations may re-
quire different clear-
ances.
b) Horizontal runs of vent must be supported
every three feet. Wall straps are available for
this purpose.
3. With the pipe attached to the stove, slide the
stove into its correct location, and mark the
wall for a 10" x 10" (inside dimensions) square
hole. The center of the square hole should line
up with the centerline of the horizontal pipe, as
shown in diagram 2. Cut and frame the 10 inch
square hole in the exterior wall where the vent
will be terminated. If the wall being penetrated
is constructed of non-combustible material, i.e.
masonry block or concrete, a 7" diameter hole
is acceptable.
Diagram 3
Dura-Vent Horizontal
Terminations
1. Set the unit in its desired location. Check to
determine if wall studs or roof rafters are in the
way when the venting system is attached. If this
is the case, you may want to adjust the location
of the unit.
2. Direct Vent pipe and fittings are designed with
special twist-lock connections to connect the
venting system to the appliance flue outlet. A
twist-lock appliance adapter is installed on the unit
at the factory. Assemble the desired combination
of pipe and elbows to the appliance adapter with
pipe seams oriented towards the wall or ceiling,
as much out of view as possible. The final posi-
tioning of the pipe and 90o elbow assembly is
determined by the mounting orientation of the
adapter on the stove and twist-locked for a solid
connection.
Diagram 1
Note:
a) Twist-lock procedure: Four indentations, located
on the female ends of pipes and fittings, are
designed to slide straight onto the male ends
of adjacent pipes and fittings, by orienting the
four pipe indentations so they match and slide
in to the four entry slots on the male ends (di-
agram 1.. Push the pipe sections completely
together, then twist-lock one section clockwise
approximately one-quarter turn, until the two
sections are fully locked. The female locking
lugs will not be visible from the outside on the
Black Pipe or fittings. They may be located
by examining the inside of the female ends.
NOTE: For best results and optimum perfor-
mance with each approved venting system, it is
highly recommended to apply “Mill-Pac” sealant
(supplied) to every inner pipe connection. Failure
to do so may result in drafting or performance
issues not covered under warranty.