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These instructions should be used as a guide-
line and do not supersede local codes in any
way. Install vent according to local codes,
these instructions, the current National Fuel
Gas Code (ANSI-Z22.1) in the USA or the
current standards of CAN/CGA-B149.1 and
-B149.2 in Canada.
Horizontal Vent Termination Clearances
The horizontal vent termination must have
a minimum of 3" (76 mm) clearance to any
overhead combustible projection of 2-1/2" (64
mm) or less. See Figure 7. For projections
exceeding 2-1/2" (64 mm), see Figure 5. For
additional vent location restrictions refer to
Figure 5 on Page 7.
Vertical Vent Termination Clearances
Terminate single vent caps relative to building
components according to Figure 6.
TERMINATION HEIGHTS FOR VENTS ABOVE
FLAT OR SLOPED ROOFS
Horizontal Overhang
2 FT
MIN.
2 FT MIN.
Lowest
Discharge
Vent
Opening
Termination
H*
Storm Collar
Flashing
1 inch (25.4 mm) Minimum
Clearance to Combustibles
Concentric
*H = MINIMUM HEIGHT FROM ROOF TO
Vent Pipe
LOWEST DISCHARGE OPENING OF VENT
The vent / air intake termination clearances
above the high side of an angled roof is as
shown in the following chart:
Termination Heights For Vents
Above Flat Or Sloped Roofs
Ref. NFPA 54 / ANSI Z22.1, 7.6
Roof Pitch
* Feet
Flat to 6/12
6/12 to 7/12
7/12 to 8/12
8/12 to 9/12
9/12 to 10/12
10/12 to 11/12
11/12 to 12/12
Figure 6
Terminate multiple vent terminations accord-
ing to the installation codes listed at the top
of this Page.
8
Horizontal Vent Termination Clearances
Combustible Projection greater
Ventilated
Soffit
18"
(457 mm)
See Figure 28 on Page 18 for the recess allowances, into
exterior walls, of the square horizontal terminations.
Figure 7
TYPICAL INSTALLATION SEQUENCE
The typical sequence of installation follows,
Vertical
Wall
however, each installation is unique resulting
in variations to those described. See the page
numbers references in the following steps for
detailed procedures.
x
Step 1. (Page 9) Construct the appliance fram-
12
ing. Position the appliance within the framing
Roof Pitch is x/12
and secure with nailing brackets.
Step 2. (Page 12) Route gas supply line to
appliance location.
Step . (Page 12) Install the vent system and
exterior termination.
Step 4. (Page 22) Field Wiring
a. Millivolt Appliances – The operating control
switch is factory installed.
b. Electronic Appliances – Connect 120 Vac
electrical power to the appliance recep-
tacle.
* Meters
1.0
0.3
Step 5. (Page 23) Install blower kit (optional
1.25
0.38
equipment).
1.5
0.46
Step 6. (Page 23) Remove glass door frame
2.0
0.61
assembly.
2.5
0.76
Step 7. (Page 24) Make connection to gas
3.25
0.99
supply.
4.0
1.22
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Combustible Projection
2-1/2"(64mm) or less in length
than 2-1/2"(64mm) in length
Unventilated
Soffit
3"
12"
(76 mm)
(305 mm)
Side Elevation View
SV4.5HT-2 Termination Kit
MINIMUM ALLOWABLE
SIDE WALL CLEARANCE
SV4.5HT-2 Termination Kit
Side Exterior
Wall
All horizontal terminations may be
located as close as 6" (152mm) to any
(non-combustible and combustible)
exterior sidewall. This distance may be
decreased to 2" (51mm) for non-
combustible exterior sidewalls only, if
the SV4.5HT-2 termination is used.
Step 8. BEFORE PROCEEDING TO STEP 9,
INSTALL A FIREBOx LINER KIT PER INSTRUC-
TIONS PROVIDED IN THE KIT (REQUIRED
- SOLD SEPARATELY).
Step 9. (Page 25) Install the logs and glowing
embers.
Step 10. (Page 27) Checkout appliance op-
eration.
Step 11. (Page 27) Adjust burner to ensure
proper flame appearance.
DETAILED INSTALLATION STEPS
The appliance is shipped with all gas controls
and components installed and pre-wired. Re-
move the shipping carton, exposing the front
glass door. Pull out the two spring loaded
latches securing the glass door (located under
the firebox floor). Remove the door by tilt-
ing it outward at the bottom and lifting it up
and off. Set the door aside protecting it from
inadvertent damage. See Figure 38a and 38b
on Page 23.
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