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MANUFACTURED (MOBILE) HOME
REQUIREMENTS
These models may be installed in an after-
market permanently located, manufactured
home, where not prohibited by local codes.
When installed in Manufactured Housing
the following supplemental requirements
must be met:
• The appliance must be secured to the fl oor
(i.e. use (4) 1/4" x 2-3/4" bolts and nuts or
equivalent. Note: Not included) for securing
appliance to the manufactured home fl oor.
• The appliance must be grounded to the
chassis of the manufactured home. Use a
No. 8 or heavier copper wire at least 18" in
length.
• The structural integrity of the manufactured
home fl oor, walls, ceiling and roof must be
maintained.
• A manufactured (mobile) home installation
must conform with the Manufactured Home
Construction and Safety Standard, Title 24
CFR, Part 3280, or, when such a stan-dard
is not applicable, the Standard for Manufac-
tured Home Installations, ANSI / NCSBCS
A225.1, or standard for Gas equipped
Recreational Vehicles and Mobile Housing,
CSA Z240.4.
QUESTIONS TO ASK LOCAL BUILDING
OFFICIAL
This appliance must be installed per manu-
facturers' instructions.
Installations must conform to appropriate
local codes and applicable state and federal
requirements. Familiarity with these require-
ments before installation is essential. Some
important considerations to discuss with
local building offi cials include:
1. Applicable codes (i.e. Uniform Mechanical
Code, State or Regional Gas Codes, National
Fuel Gas Code)
2. Local amendments
3. Recognized testing lab: OMNI-Test Labora-
tories Inc.; Beaverton, Oregon
4. Is a permit required - cost?
5. In some states or municipalities, a licensed
gas fi tter or plumber may be required to
install this appliance. Check with your local
building offi cial for requirements in your area
(i.e. Is a license required for installation of
gas supply line)?
6. Maximum amount of gas pipe without a
pressure test - type of test required?
6
7. Are below grade penetrations of the gas line
allowed?
8. Is concealed gas piping allowed?
9. Specifi c requirements of concealed fi t-
tings?
10. Is rigid pipe to appliance required?
11. Allowed piping materials?
12. Shut-off valve required within 4 feet of the
fi rebox?
13. May the shut-off valve be concealed?
14. Rooms where the installation is not
allowed?
In the absence of local codes, installation
should conform to National Fuel Gas Code,
ANSI Z223.1 / NFPA 54-Latest Edition in the
USA or National Fuel Gas Code, CAN/CGA-
B149-Latest Edition in Canada.
VENT TERMINATION CLEARANCES
Vertical Vent Termination Clearances
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
12
Flashing
Roof Pitch is X/12
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
follows:
Roof Pitch ................. Feet
Flat to 6/12 ................ 1.0
6/12 to 7/12 ............... 1.25
7/12 to 8/12 ............... 1.5
8/12 to 9/12 ............... 2.0
9/12 to 10/12 ............. 2.5
10/12 to 11/12 ........... 3.25
11/12 to 12/12 ........... 4.0
12/12 to 14/12 ........... 5.0
14/12 to 16/12 ........... 6.0
16/12 to 18/12 ........... 7.0
18/12 to 20/12 ........... 7.5
21/12 to 21/12 ........... 8.0
Figure 3
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
These instructions should be used as a
guideline and do not supersede local codes in
any way. Install vent according to local codes,
these instructions, the current National Fuel
Gas Code (ANSI-Z223.1) 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 4. For projections
exceeding 2-1/2" (64 mm), For additional vent
location restrictions refer to Figure 5.
Horizontal Vent Termination Clearances
greater than 2 1/2 inches in length
Ventilated
Soffit
Vertical
Wall
18"
(457 mm)
X
Note - See vent manufacturer's instructions for recess
allowances, into exterior walls for the horizontal
termination caps.
Figure 4
Meters
0.3
0.38
0.46
0.61
0.76
0.99
1.22
1.52
1.83
2.13
2.29
2.44
Combustible Projection
2 1/2 inches or less in length
Combustible Projection
Unventilated
Soffit
3"
(76 mm)
12"
(305 mm)
Horizontal T
ermination Kit
Side Elevation View
3"
(76 m
1"
(25 mm
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