Section 3: Venting; Converting To Rear Vent; Section 3-1-1: Converting To 5"/ 8" Venting - Montigo P52DF Installation & Maintenance Manual

Section 3: Venting

Montigo supplies a variety of direct venting and termination
options. The direct vent termination location MUST be
selected such that it is the highest point in the venting
assembly. It should also be selected such that it provides
the shortest vent run possible. Should it be impossible to
ensure that the termination is the highest point or to meet
the venting guidelines laid out below please contact your
Montigo dealer to discuss power venting options.
NOTES FOR PLANNING VENTING:
Venting can originate from the unit through the top or
through the rear
Venting can terminate through the roof or through an
exterior wall.
Refer to Appendix A - Termination Locations to ensure
the planned termination location is acceptable.
Once the termination location has been established,
refer to the appropriate section below for installation
details
All fireplaces shipped from the factory are Top vent
with 5" and 10" collar installed.
Silicone application is not required when joining
Montigo vent pipes and components.

Converting to Rear Vent

Section 3-1:
Use the following instructions to convert a P52DF* for
Rear Vent use:
1. Remove the Rear flue cover and gasket (5" and 10")
on the flue outlet, as shown in Figure 9.
2. Next, Remove the Top flue collar's (5" and 10") on the
flue outlet, as shown in Figure 9
3. Install the (removed) Rear flue cover and gasket
material, to the Top vent outlet. Fasten the cover with
included hardware, as illustrated Figure 10.
Flue Gasket
Flue Cover Plate
Figure 7. Flue cover and collar removal, Top Vented
fireplace.
XG0196 - 150204.3
Installation
10"Outer Flue Collar
5" Inner Flue Collar
Figure 7a Flue cover and collar installation, Rear Vented
fireplace.
UNITS CANNOT BE REAR VENTED
STRAIGHT THROUGH THE WALL.
REAR VENT APPLICATIONS MUST BE
MULTI-ELBOW.

Section 3-1-1: Converting to 5"/ 8" Venting

(VERTICAL VENT RUNS OVER 8' FROM TOP OF
UNIT ONLY)
Use the following instructions to convert a P52DF* from
5"/ 10" to 5"/ 8" venting for Top or Rear Vent use
outside of 8 feet vertically from the unit:
Note: If power venting, vent run must be reduced to 5"/8"
5" Inner Flue Collar
or 4"/7". contact your Montigo dealer to discuss power
venting options.
Outer Flue Collar
10"
Note:
purposes. However, your fireplace should not be operated
without proper installation of screens.
1. Remove the 10" outer flue collar on the flue outlet,
from the desired vent start - TOP or REAR
2. Install the separately ordered 8" reducing collar
(RVA108) on the Top or Rear vent outlet.
Images are shown without screens for clarity
P52DF* Indoor Gas Fireplace
Flue Cover Plate
Flue Gasket
Page 9