Section 3: Venting; Notes For Planning Venting; Section 3-1: Converting To Rear Vent - Montigo P42DF Prestige Series Installation & Maintenance Manual

P42DF* Indoor Gas Fireplace

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.
Section 3-1:
CONVERTING TO REAR VENT
Use the following instructions to convert an P42DF* for Rear Vent use:
1. Remove the Rear flue cover and gasket (5" and 8") on the flue
outlet, as shown in Figure 8.
2. Next, Remove the Top flue collar's (5" and 8") on the flue outlet,
as shown in Figure 8.
3. Install the (removed) Rear flue cover and gasket material, to the
Top vent outlet. Fasten the cover with included hardware, as
illustrated Figure 8a.
4. Install the (5" and 8") collars to the rear vent outlet using the
included hardware, as illustrated Figure 8a.
Flue Gasket
Flue Cover Plate
Figure 8. Flue cover and collar removal, Top Vented
fireplace.
Page 8
Installation
8" Outer Flue Collar
5" Inner Flue Collar
Figure 8a. Flue cover and collar installation, Rear Vented
fireplace.
5" Inner Flue Collar
8" Outer Flue Collar
Flue Cover Plate
Flue Gasket
XG0195 - 030712.1