Nature's Comfort NC-40 Owner's Manual - page 14
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MOBILE HOME REQUIREMENTS:
IT IS MANDATORY TO TAKE THE COMBUSTION AIR FROM THE OUTSIDE WHEN INSTALLING THIS
UNIT IN AN AIR TIGHT OR MANUFACTURED/MOBILE HOME.
CAUTION: THE STRUCTURAL INTEGRITY OF THE MANUFACTURED HOME FLOOR, WALL, AND
CEILING/ROOF MUST BE MAINTIANED.
WARNING: DO NOT INSTALL IN SLEEPING ROOM
In addition to the details above, mobile home installations must meet the following requirements:
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The stove must be permanently attached to the floor. Remove the back cover, drill 2 holes through the
rear of the base and secure with bolts or screws. Keep foot screws installed.
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The stove must be electrically grounded to the steel chassis of the mobile home with 8 AWG copper
wire using an appropriate termination and a serrated or star washer to penetrate paint or protective
coating to ensure proper grounding.
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The vent must be a factory-built 3 or 4 inch listed type “L” or “PL” vent conforming to “CAN/ULC-S629,
Standard For 650C Factory-Built Chimneys” and must extend a minimum of 36” above the roofline of
the mobile home and must be installed using a listed ceiling fire stop and rain cap.
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When moving your mobile home, all exterior venting must be removed while the home is being
relocated. After relocation, all venting must be reinstalled and securely fastened.
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All joints for connector pipe are required to be fastened with at least three screws and sealed with high
temperature silicone sealant. An effective vapor barrier must be maintained wherever a chimney or
other component (e.g. thimble) penetrates to the exterior of the home.
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CAUTION: OUTSIDE AIR IS MANDATORY FOR MOBILE HOME USE. ADEQUATE VENTILATION IS
REQUIRED. FAILURE TO KEEP STOVE VIEWING DOOR AND ASH PAN SECURELY CLOSED OR
EXCESSIVE HOME EXHAUST FAN OPERATION MAY CAUSE ROOM AIR STARVATION LEADING
TO POSSIBLE AFFIXIATION. ENSURE OUTSIDE AIR INTAKE STAYS FREE FROM BLOCKAGE
SUCH AS ICE, LEAVES, ETC.
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Only specified components may be used with this stove. Do not use any components that are not
specified for use with this stove.
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Check with your local building officials as other codes may apply.
Determining Equivalent Pipe Lengths
Below is a chart for determining equivalent feet for if a maximum limit must be observed for an installation.
Type of Pipe
# of Elbows or
Feet of pipe
Equivalent
Feet
Total
Equivalent
Feet
90
Elbows
5(1.5m)
45
Elbows
3(1m)
Horizontal
Pipe
1(.3m)
Vertical
Pipe
5(1.5m)