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LPG and High-Altitude Venting Requirements
For LPG and High-altitude applications, a 24" minimum vertical starter section is required. In addition, for horizontal
terminations with the 24" minimum rise, use of 2X 45-degree elbows in place of one 90-degree elbow is required.
If using more than a 24" vertical starter section, refer to the Main Venting Chart.
Maximum Horizontal Run
Maximum Horizontal Run allowed is 12 feet if a vertical starter section that is between 4 feet to 25 feet is connected
directly to this fireplace's flue starter collar and no more than three (3) 90-degree elbows are used.
Maximum Horizontal Run allowed is 12" if a 12" starter vertical section is connected directly to this fireplace's flue
starter collar.
Maximum Vent System Length
Combined total length of all straight pipe sections in the vent system shall be less than 37 feet.
Combined total length of all straight pipe sections in the vent system shall be less than 37 feet when using three (3) 90-
degree elbows or equivalent and terminating the vent system horizontally.
How to Calculate the Vent Lengths
For calculation purposes and usage of charts in this manual, simply add the lengths of all individual straight pipe sections. For
example: if you use two 2-foot lengths and one 4-foot length, the total vent system length will be 2+2+4 = 8 feet.
Using 90
0
Elbows
The DXV42 TIMBERFIRE Fireplace by MENDOTA allows maximum flexibility in the use of 90
length of the first straight vertical section directly connected to the fireplace's starter collar determines the maximum
horizontal run and the number of 90
For vent systems that provide a starting vertical section that is 4' to 25', you may connect up to 12' of horizontal pipe and up to
three 90
°
elbows.
85-03-01116
Figure 4-11 LPG & High-Altitude Minimum Requirement
0
elbows allowed for this fireplace.
DXV42 TIMBERFIRE
o
elbows in the vent system. The
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