85-03-01103
FV41 ARCH
Page
61
FV41 ARCH Master Venting Chart
1. 18 inches maximum horizontal pipe run allowed with a 90
0
-elbow connected directly to this fireplace’s flue starter
collar.
2. Maximum Vertical Run allowed is 61 feet.
3. Maximum Vent System length allowed is 65
feet.
4. In
Zone “A”
, 20 feet maximum horizontal run
allowed with a 4 feet starter section. If the
starter vertical section is less than 4 feet, use
the chart and reduce 3 feet for every 90
0
-
elbow installed after the first 90
0
elbow.
5. In
Zone “B”
, 20 feet maximum horizontal run
allowed only if the first vertical section
connected directly to the top of this fireplace
is 4 feet or longer. Three 90
0
elbows may be
installed anywhere within the 20 feet
horizontal run. No reduction in horizontal is
required for the 90
0
elbows used.
High Altitude Installation
Information
Prior to installing at altitudes higher than 7500,
please contact the Mendota technical service
department for specific venting requirements and
venting restrictions.
1.
MASTER
VENT CHART
V min
H max
0 in.
18"
6 in.
3’
12 in.
6’
18 in.
8’
24 in.
11'
36 in.
15’6”
4 ft. - 41 ft.
20'
41ft. - 61 ft.
Varies
F
O
U
R
9
0°
ELBO
W
S
MAX
I
F
VE
R
T
IC
AL
L
Y
T
ER
M
IN
A
T
ED
I
N
Z
O
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E "
B"
.
T
H
R
E
E
9
0
° E
L
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OW
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M
A
X
IF
H
OR
IZ
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Y
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"B
".
N
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TE
: IN
Z
ON
E
"B
",
M
A
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IM
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IZ
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TA
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S
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EG
AR
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90
° E
L
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W
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SED
.
IN
Z
O
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E
"
B"
A
D
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U
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T
A
BL
E
EX
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A
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A
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P
ER
MAY BE F
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.
IN
Z
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"
A"
,
AD
JU
ST
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L
E
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XH
AU
ST
D
AMPE
R
M
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.
ZONE "B"
ZONE "A"
