Outside Air Connection - Cumberland Stove Works MF3800 Installation And Service Manual

OUTSIDE AIR CONNECTION

Connection from the intake pipe (2" diameter pipe in rear of
stove) to the outside of the house is REQUIRED for mobile
home installation. It is recommended in tightly sealed homes
with exhaust fans such as kitchen or bathroom fans. This will
eliminate poor performance due to negative pressure.
Only noncombustible pipes two inches (2") or greater in
diameter are approved to use for outside air connections
(straight or flexible). PVC pipe is NOT approved and should
NEVER be connected to the stove. HINT: A Cumberland
Stove Works air inlet will accept automotive exhaust pipes
and couplers.
If the air inlet is connected to the outside, it MUST be terminated
with a vertical 90º bend (down) or with a wind hood. Failure to
do so could result in a burn back during high winds blowing
directly up the air inlet during a simultaneous power failure.
Blockage, excessive length, or extra bends in the air intake pipe
will starve the stove of combustion air. A 90º bend is equivalent
in restriction to approximately 30" of straight inlet pipe.
MOBILE HOME
Installation in a mobile home should be in accordance with
the manufactured home and safety standard. Department of
Housing and Urban Development (HUD) CITE: 24CFR3280.707
stating this stove must be vented to the outside. In addition
to the standard installation instructions, the following
requirements are mandatory for installation in a mobile home:
1. Stove must be bolted to the floor. Stove will have four
tie-down straps that bolt to the feet and the floor.
SEE FIGURE 18.
2. Stove must have an outside air source.
3. Stove must be electrically grounded to the steel chassis of
the mobile home.
4. All vertical chimney vents must have wall supports.
5. All exhaust systems must have a spark arrestor.
C
Tie-down Straps
Figure 18: Mobile Home Anchor & Leg Assembly
C
FOR QUALIFIED INSTALLERS ONLY
B
B
Lag Screw
CumberlandStoveWorks.com
INSTALLATION AND SERVICE MANUAL
WARNING
DO NOT INSTALL IN A SLEEPING ROOM.
CAUTION
CUMBERLAND STOVE WORKS RECOMMENDS USING
OUTSIDE AIR FOR COMBUSTIBLE AIR CONNECTIONS, AS
THE OPERATION OF EXHAUST FANS SUCH AS BATHROOM
FANS, ATTIC FANS, ETC., MIGHT STARVE THE PARLOR STOVE
OF COMBUSTIBLE AIR. STARVING THE STOVE OF AIR CAN
CREATE A NEGATIVE PRESSURE IN THE ROOM. PROVIDE
ADEQUATE VENTILATION IN THE ROOM ACCOMPANYING THE
PARLOR STOVE. IF NOT, THE PRESSURE SWITCH MAY SHUT
OFF OPERATION OF THE PARLOR STOVE.
THE STRUCTURAL INTEGRITY OF THE MANUFACTURED
HOME FLOOR, WALL, AND CEILING/ROOF MUST BE
MAINTAINED.
Model MF3800
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