Vertical Term's With Two 90° Elbows - Lopi Heritage Owner's Manual

Installation
Vertical Terminations with Two or Three 90° Elbows
• The termination must fall within the shaded area shown in the chart. Use the indicated restrictor
position.
38' (max)
35 feet
30 feet
25 feet
20 feet
15 feet
10 feet
(min.)
5 feet
0 feet
NOTE:
• Horizontal sections require a 1/4" rise
every 12" of travel.
• The maximum vertical height is 38'.
• The maximum horizontal length is 25'.
• One horizontal elbow is allowed. The
horizontal vent length is calculated by
adding the length before and after the
elbow (H1 + H2 = horizontal vent length).
Travis Industries
(for qualified installers only)
Restrictor
Position # 7
NOTE:
Restrictor positions
are based upon lab
tests. The ideal
restrictor position
may vary slightly,
especially when the
termination is near a
demarkation line.
Restrictor
Position # 1
NOTE:
Horizontal sections require a
1/4" rise every 12" of travel.
This is considered a horizontal
elbow (it does not matter
whether it turns right or left).
It may be a 45° or 90° elbow.
100-01135
This is considered a
H2
H2
H1 vertical elbow
Horizontal length is calculated by adding
both lengths of horizontal run
(Horizontal Length = H1 + H2).
H1
This is considered a
vertical elbow
13
38' (max)
35 feet
30 feet
25 feet
20 feet
15 feet
10 feet
(min.)
5 feet
0 feet
4 0 4 0 8 0 9