Section 3: Venting; Converting To Side Vent - Montigo L42DF ST Installation & Maintenance Manual

L42DF-ST* 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 termina-
tion 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 side.
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.
See Section 3-1 for converting the unit from top vent to rear vent.

Converting To Side Vent

Section 3-1:
Use the following instructions to convert an L42DF-ST* for Rear
Vent use:
1. Remove the Side 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
Flue Collar
8" Outer
Flue Collar
5" Inner Flue
Cover Plate
Outer Flue
Plate
Figure 9. Flue cover and collar removal, Top Vented fireplace.
Page 10
Installation
outlet, as shown in Figure 9.
3. Install the (removed) Side 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 Side vent outlet using the
included hardware, as illustrated Figure 9a.
Figure 9a. Flue cover and collar installation, Side Vented
fireplace.
Note: Images are shown without screens for clarity purposes.
However, your fireplace should not be operated without proper
installation of screens.
8" Outer Flue
Cover Plate
5" Inner Flue
Cover Plate
8" Outer
Flue Collar
5" Inner
Flue Collar
XG0182 - 151126