17
Mason-Lite Fireplace
Chimney System
MFPST43
UL103-
16” I.D. Class A
MASON-LITE Chimney Systems:
The Mason-Lite Fireplace requires the following chimney
systems:
All chimney systems must be installed with an integrated
damper/base plate installed on top of unit. Installers are
cautioned to put the chimney system together exactly as
instructed and shown in chimney manufacturer
’s guide. Any
variations may have serious consequences resulting in an
accident or malfunction. If instructions are not followed, the
warranty on the product will become null and void.
Figure 33
Elbow
Return
Elbow
6'
Max.
6'
Max.
Return
Elbow
Elbow
Elbow
Return
Elbow
6'
Max.
6'
Max.
Return
Elbow
Note that the most important aspect of the installation is
maintaining the minimum required clearances to combustible
Elbow
Ceiling
Return
Elbow
materials according to the chimney pipe manufacturer
’s
recommendations, otherwise a potential fire hazard may
occur.
Warning: do not interchange chimney manufacturer
’s parts
with any other parts except those specifically required by
the chimney manufacturer
’s recommendations otherwise a
potential hazardous condition may be created.
Attention: When choosing a Chimney System it must meet the
following requirements:
A
B
Elbow
Support
Pipe 12S-
12DM
6'
Max.
C
6' Max.
•
Designed for installation in accordance with the National
Fire Protection Standard and UL 103.
•
Meets the requirements of NFPA 211.
•
Designed in accordance with ICC Codes.
Assuming you have sections of vertical pipe that are more than
10’ (ten feet) measuring between elbows, you must insert – at
midpoint
– a chimney stabilizer. When installing the stabilizer,
pull out the support straps with a good amount of tension and
hammer to the frame.
Installing Damper and Chimney System
The Damper System/Anchor Plate assembly is required
for the installation of these chimney systems. Consult the
Chimney System manufacturer
’s instructions.
1. Using the Damper/Anchor Plate Assembly, apply a
1/4”
(one-quarter inch) bead of gasket cement around the
base of the Anchor Plate. Apply ceramic blanket gasket to
the gasket cement.
2. Apply balance of gasket cement in a
1/4” (one-quarter
inch) bead on top of smoke dome top approx.
3” (3 inches)
outside of outlet hole. Install damper on top of unit pressing
damper into cement.
3. Place chimney adapter onto top of damper plate and
center in opening using gasket supplied with adapter.
4. Attach adapter with (12) #8 cement fasteners supplied,
carefully drilling holes into damper plate.
5. Attach damper chain stop on center rear of lintel
3”
(three inch) vertical from opening using (3) #8 cement
fasteners.
Attention:
Clearance to combustible construction cannot be
reduced during course of construction. For the safe operation
of the finished fireplace, these clearances must be followed
when building the framework for the chimney system.
Finishing Your Installation
To complete your fireplace installation, a fireplace grate will
be required for safe operation. The fireplace grate must be
sized to 50% of the hearth maximum. Additionally, a fireplace
screen must be installed for safety.
Fireplace Door Accessory
IMPORTANT: Only
Crown-Breckinridge or
McKenzie-
Pendelton Doors are approved for use with this fireplace.
For installation Instructions, see separate instructions included
with doors.
