Magnum Winchester Elite WIN-ACI, Owner'S Manual

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OUTSIDE MAKE-UP AIR FOR COMBUSTION IS REQUIRED ON ALL INSTALLATIONS
1) For FREESTANDING installations with horizontal through-the-wall exhaust, it is REQUIRED that the stove
combustion air intake be connected to a fresh air intake outside. If the home is newer or has been tightly
insulated it is imperative to the operation of the unit to install outside combustion air. If you do not, then an
additional 6” intake into the furnace room in the basement is required.
2) For INSERT installations into an existing fireplace, or FREESTANDING installations with a vertical exhaust,
outside air connection is required. It is not recommended to exit the fresh air intake out the top of the chimney.
3) Connection to outside the house is REQUIRED for all installations.
IMPORTANT: It is the customer’s responsibility to make sure that there is adequate fresh air to the home
so that the MagnuM appliance does not become the fresh air source. Depending on length of run, elbows
and configuration you will have to increase the size of the fresh air intake. Typically you would increase
from 3” to 4” over 10’ of run or more than 2 elbows.
4) Only non-combustible piping 3” in diameter is approved to use for outside air connections (straight or flexible).
PVC pipe is NOT approved and should NEVER be used.
5) If the air inlet is connected to the outside, it MUST be terminated with a vertical 90-degree 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 (see diagram above).
6) It is important not to terminate the inlet of the fresh air intake too close to the venting outlet for the exhaust. It
is recommended that the inlet for the fresh air is a minimum of 3’ to 5’ feet away from the venting outlet and at
least 1’-2’ feet below.
7) Blockage, excessive length, or bends in the air intake pipe will starve the stove of combustion air. A 90-degree
bend is equivalent in restriction to approximately 30” of straight inlet pipe.
DESIGN GUIDELINES FOR OUTSIDE COMBUSTION AIR CONNECTION