Section 3: Venting; Section 3-1: Converting To Rear Vent - Montigo L42DFN Installation & Maintenance Manual

L42DF* 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 originates 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.
„
Silicone application is NOT required when joining Montigo vent
„
pipes and components.

Section 3-1: Converting To Rear Vent

Use the following instructions to convert an L42DF* for Rear Vent use:
1. Remove the Rear flue cover and gasket (5" and 8") on the flue
outlet, as shown in Figure 10.
2. Next, Remove the Top flue collar's (5" and 8") on the flue outlet,
as shown in Figure 10.
Flue Gasket
Flue Cover Plate
Figure 10. Flue cover and collar removal, Top Vented fireplace.
Page 10
Installation
3. Install the (removed) Rear flue cover and gasket material, to the
4. Install the (5" and 8") collars to the rear vent outlet using the
8" Outer Flue Collar
5" Inner Flue Collar
Figure 10a. Flue cover and collar installation, Rear Vented fireplace.
Note: Images are shown without screens for clarity purposes. However,
your fireplace should not be operated without proper installation of
screens.
5" Inner Flue Collar
8" Outer Flue Collar
Top vent outlet. Fasten the cover with included hardware, as
illustrated Figure 10a.
included hardware, as illustrated Figure 10a.
Flue Cover Plate
Flue Gasket
XG0181 - 150204