Section 3: The Direct Vent System; Converting From Top Vent To Rear Vent - Montigo L38DF Installation & Maintenance Manual

L38DF* Indoor Gas Fireplace
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
should it be impossible 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 L38DF* for Rear Vent use:
1. Remove the Rear flue cover and gasket (5" and 8") on the flue
outlet, as shown in Figure 9.
2. Next, Remove the Top flue collar's (5" and 8") on the flue outlet,
as shown in Figure 9.
Flue Gasket
Flue Cover Plate
Figure 9. Flue cover and collar removal, Top Vented fireplace.
Page 8
Installation
8" Outer Flue Collar
5" Inner Flue Collar
Figure 9a. Flue cover and collar installation, Rear Vented fireplace.
5" Inner Flue Collar
8" Outer Flue Collar
3. Install the (removed) Rear flue cover and gasket material, to the
Top vent outlet. Fasten the cover with included hardware, as
illustrated Figure 9a.
4. Install the (5" and 8") collars to the rear vent outlet using the
included hardware, as illustrated Figure 9a.
Section 3: Venting
Flue Cover Plate
Flue Gasket
XG0180 - 053111.1