Straight.venting.layout; Multi-Elbow.installations; Downward.vertical.venting; Section 3: Installing The Power Vent - Montigo R320 Installation & Maintenance Manual

Montigo supplies a variety of power venting options. The
location of the power vent should be selected and laid out
to provide the shortest possible run to an external wall or
through the roof. In the event that the external power vent
is not aesthetically acceptable or otherwise infeasible, an
in-line power vent can be utilized.
Section 3-1: Installing a Roof Mounted Vertical
Exterior Power Vent (EDVRSPV58)
This section applies to installations where the shortest
possible vent run is through the roof. Refer to Appendix
A - Power Vent locations, to ensure the planned Power
vent location is acceptable. Once the vent location has been
established, please refer to the appropriate section below
for installation details.
Section 3-1-1: Venting Layout

Straight.Venting.Layout

Selection of components and details of venting lay out
should adhere to the following guidelines:
■ Ensure there is a minimum run of 2' of straight pipe
before the power vent
■ Ensure the maximum vent run does not exceed 80'
■ Ensure the number of 90° elbows does not exceed 6
■ Ensure the number of 45° elbows does not exceed 12
V
Figure 3. Typical straight Venting Installations.
XG0770 - 020911
Installation
Venting Installation
V (Maximum Length) Max. # Elbows Elbow Angle
80 Feet 6
Section 3: Installing the Power Vent

Multi-Elbow.Installations

Multi-elbow installations are possible up to a maximum of
six 90° elbows.
Elbow 2
V1
Multi Elbow - Venting Installation
V1 + H1 + V2 + H2 + V3
(Maximum Length)
80 Feet
Figure 3a. Multi-elbow Venting Installations.

Downward.Vertical.Venting

Note: The downward vent run must not exceed 6' of vent run.
90°
Elbow 2
V1
Multi Elbow - Venting Installation
V1 + H1 + V2 + H2 + V3
(Maximum Length)
40 Feet
Figure 3b. Downward Venting Installations.
R-Series R320-R420 Indoor Gas Fireplace
V3
Elbow 4
H2
V2
Elbow 3
H1
Elbow 1
Max. # Elbows Elbow Angle
6 90°
Elbow 3
H1
D = 6' foot
MAX
Elbow 1
Elbow 4
H2
Max. # Elbows Elbow Angle
6 90°
Elbow 5
V3
Elbow
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