32 Installation
(for qualified installers only)
© Travis Industries
10/16/17 - 1453
PB 42 MV/GSB2 Install
Vent Configuration: Vertical Termination
Use 4x6-5/8” Diameter Coaxial Vent. Connect a 8” to 6-5/8” reducer directly to the
fireplace (sku 98900165).
NOTE
: The included thimble assembly is not required and may be discarded.
The termination must fall within the shaded area shown in the chart. Use the indicated
restrictor positions.
Up to four elbows (45° or 90°) may be used. Only one horizontal elbow may be used.
5 feet (1.5m)
0 feet
0 feet
5 feet (1.5m)
0 feet
20 feet (6m)
20 feet (6m)
5 feet (1.5m)
10 feet (3m)
5 feet (1.5m)
10 feet (3m)
0 feet
15 feet (4.5m)
20 feet (6m)
10 feet (3m)
15 feet (4.5m)
15 feet (4.5m)
20' (6m) max
10 feet (3m)
15 feet (4.5m)
40' (12m) max
25 feet (7.5m)
30 feet (9m)
35 feet (10.5m)
40' (12m) max
25 feet (7.5m)
30 feet (9m)
35 feet (10.5m)
25 feet (7.5m)
30 feet (9m)
35 feet (10.5m)
40 feet (12m)
45 feet (13.5m)
50 feet (15m)
55 feet (16.5m)
60 feet (18m) max
25 feet (7.5m)
30 feet (9m)
35 feet (10.5m)
40 feet (12m)
45 feet (13.5m)
50 feet (15m)
55 feet (16.5m)
60 feet (18m) max
Attach reducer directly to the fireplace.
Exhaust Restrictor # 8
Diffuser Open
Exhaust Restrictor # 5
Diffuser Open
Exhaust Restrictor # 11
Diffuser Open
This is considered a horizontal
elbow (it does not matter
whether it turns right or left).
It may be a 90° or 45° elbow.
This is considered a
vertical elbow
Horizontal length is calculated by adding
both lengths of horizontal run
(Horizontal Length = H1 + H2).
H1
H2