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WHEN OUTSIDE AIR IS NOT USED
If outside air is not used, it is important that combustion air is easily
available to the air inlet. A closeable outside air register can be used
in tightly insulated homes. In insert installations, flashing vents
should not be restricted. The flashing should not necessarily seal
the fireplace face.
VENTING
Your appliance is certified for use with listed TYPE L-Vent, 3" or
4" diameter in size. The stove was tested with Simpson Duravent
brand. Class "A" chimney is not required. Refer to the instructions
provided by the vent manufacturer, especially when passing through
a wall, ceiling or roof. This is a pressurized exhaust system. We
suggest sealing all vent connector joints with 500°F (260°C) RTV
silicone sealant to ensure consistent performance and to avoid
smoke spillage. We also suggest that all horizontal connector joints
be sealed with UL-181-AP foil tape. It is strongly recommended that
you have a minimum of 6' of vertical pipe in your exhaust system.
For best performance of the stove limit the number of elbows and
horizontal pipe as much as possible
FOLLOW L-VENT CHIMNEY MANUFACTURER'S INSTALLATION
INSTRUCTIONS. DO NOT CONNECT THIS UNIT TO A CHIMNEY
FLUE SERVING ANOTHER APPLIANCE. DO NOT INSTALL A
FLUE DAMPER IN THE EXHAUST VENTING SYSTEM OF THIS
UNIT. INSTALL VENT AT CLEARANCES SPECIFIED BY THE VENT
MANUFACTURER.
IMPORTANCE OF PROPER DRAFT
Draft is the force which moves air from the appliance up through
the chimney. The amount of draft in your chimney depends on the
length of the chimney, local geography, nearby obstructions and
other factors. Too much draft may cause excessive temperatures
in the appliance. Inadequate draft may cause backpuffing into the
room and 'plugging' of the chimney. Inadequate draft will cause
the appliance to leak smoke into the room through appliance and
chimney connector joints. An uncontrollable burn or excessive
temperature indicates excessive draft. Take into account the
chimney's location to insure it is not too close to neighbors or in a
valley which may cause unhealthy or nuisance conditions.
VENT TERMINATION CLEARANCES
G
A.
Minimum 4-foot (1.22m) clearance below or beside any door or
window that opens.
B.
Minimum 1-foot (0.3m) clearance above any door or window
that opens.
C.
Minimum 3-foot (0.91m) clearance from any adjacent building.
D.
Minimum 7-foot (2.13m) clearance from any grade when
adjacent to public walkways.
E.
Minimum 2-foot (0.61m) clearance above any grass, plants, or
other combustible materials.
F.
Minimum 3-foot (0.91m) clearance from an forced air intake of
any appliance.
G.
Minimum 2-foot (0.61m) clearance below eves or overhang.
H. Minimum 1-foot (0.3m) clearance horizontally from combustible
wall.
I.
Must be a minimum of 3 foot (0.91m) above the roof and 2
foot (0.61m) above the highest point or the roof within 10 feet
(3.05m).
EQUIVALENT VENT LENGTH (EVL)
The longer the run of pipe in your installation (both with inserts
and freestanding units), the more restriction there is in the system.
Therefore, larger diameter pipe should be used.
•
Use 4" pipe if you have more than 15 feet of equivalent vent
length.
•
Horizontal runs shall not exceed 10 feet of EVL.
•
It is recommended that vertical runs be a minimum of 8 feet.
•
To calculate EVL, use the following conversions:
90º elbow or "T"
45º elbow
Horizontal Pipe Run
Vertical Pipe Run
NOTE: At altitudes above 3,000 feet, we suggest the use of 4"
diameter vent at an EVL of 7 feet or more.
= 5 equivalent feet
= 3 equivalent feet
= 1 equivalent foot per actual foot
= 0.5 equivalent foot per actual foot
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