Section 4: Installing The Power Vent; Installing A Roof Mounted Vertical Exterior Power Vent; Venting Layout; Straight Venting Layout - Montigo R320-ST Installation & Maintenance Manual

Section4:InstallingthePowerVent
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.
Installing a Roof Mounted Vertical Exterior
Power Vent
This section applies to installations where the shortest possible vent
run is through the roof. Refer to AppendixA -PowerVentlocations,
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.

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

Straight Venting Layout

V
Figure 1 Sec.4 Typical straight Venting Installations.
Note: Images are shown without screens for clarity purposes.
However, your fireplace should not be operated without proper
installation of screens.
XG0774 - 150121
Installation
Venting Installation
V(MaximumLength) Max.#Elbows
80 Feet
R320-ST & R420-ST Power Vent Indoor Gas Fireplace

Multi-Elbow Installations

Multi-elbow installations are possible up to a maximum of six
at 90° elbows.
Elbow 2
V1
MultiElbow-VentingInstallation
Figure 2 Sec.4 Multi-elbow Venting Installations.

Downward Vertical Venting

Note: The downward vent run must not exceed 6' of vent run.
6
Elbow 2
V1
Figure 3 Sec.4 Downward Venting Installations.
V3
Elbow 4
H2
V2
Elbow 3
H1
Elbow 1
V1 + H1 + V2 + H2 + V3 Max.#
(MaximumLength) Elbows
80 Feet 6
Elbow 3
H1
D = 6' foot
MAX
Elbow 1
Elbow 4
H2
MultiElbow-VentingInstallation
V1 + H1 + V2 + H2 + V3 Max.#
(MaximumLength) Elbows
40 Feet
Elbow 5
V3
Elbow
6
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