85-03-01145
ML54
Page
62
ML54 Master Venting Chart
Note: This chart is applicable to both natural gas and LP installations.
If using a Mendota approved power vent kit, consult the power vent instruction manual for additional venting
configurations.
❑
9” minimum vertical pipe run
required to be connected directly to
this fireplace’s flue starter collar.
❑
Maximum horizontal run allowed
with the
minimum 9” vertical run is
12”.
❑
Maximum vertical run allowed is
40’.
❑
Maximum vent system length
allowed is 44’.
❑
32’ maximum horizontal run allowed
with a minimum 4 to 12’ starter
section. Three 90
°
elbows may be
installed anywhere within the 32’
horizontal run. If the starter vertical
section is less than 4’, use the chart
and reduce 3’ for every 90
°
elbow
installed after the first 90
°
elbow.
❑
For all vertical terminations, four 90
°
elbows allowed. However, the
fourth 90
°
elbow must point
vertically and directly to the vent
termination cap.
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.
V min
H max
9
”
1
2”
12
”
3
’ 5”
2
’
1
2’ 11”
3’
2
2’ 6”
4’ –
12’
32’
12’
–
40’
Varies
13'-9"
18'-3"
22'-
10"
27'-5"
32'-0"
3'-
5"
12'-
11"
22'-6"
32'-0"
9"
1'-0"
2'-0"
3'-0"
4'-0"
12'-0"
16'-0"
20'-0"
24'-0"
28'-0"
32'-0"
36'-0"
40'-0"
1'-
0"
8'-0"
4'-
0"
8'-
0"
12'-0"
16'-0"
20'-0"
24'-0"
28'-0"
4'-
7"
9'-
2"
Figure 5-15 MASTER VENT CHART
