MCFS36, DFS32, DFS3224, DFS36 and DFS42 Vent Free Gas Fireplace Systems
The Monessen Vent Free Gas Fireplace Systems provide outstanding design flexibility with the most desired product
features, for either a recessed or against the wall installation.
• Full size DFS fireplace system with 32", 36" and 42" hearth
openings
• DFS system features realistic emberblaze ceramic fiber logs
with glowing embers and dancing yellow flames
• MCFS 36" fireplace system with a 20" depth features realistic
kentucky stack log set (shown above)
•Large selection of field installed options including decorative faces
in several finishes
• Factory or field installed weathered firebrick
•Includes fixed screen, integrated burner assembly, concealed
controls, black louvers, flex connector and junction box
• New air duct design allows blower operation with radiant face
plates
• No venting required, all the heat stays in your home
Save
on Home
Heating with a
99% Heat
Efficient
Vent-Free
Fireplace
• Control options:
DFS Variable Manual, Thermostat, Remote-Ready
Millivolt and Variable Hi/Lo
MCFS Remote-Ready Millivolt
• CSA Design Certified
NEW AIR DUCT DESIGN ALLOWS BLOWER
OPERATION WITH RADIANT FACE PLATES
DFS and MCFS Systems
• Out-of-the-box ready for a circulating
installation
• Radiant plates included for easy field
conversion
• New air duct design allows blower
operations with radiant face plates
Circulating DFS Fireplace
System shown
DFS Fireplace System shown
with radiant plates
2-IN-1
FLEXIBLE FACE™
Converts from Circulating to
Radiant in Seconds!
• New air duct design allows blower operation with radiant face plate
• The DFS vent-free gas fireplace system features full size height and width builder dimensions, yet is
only 16 inches deep for those slim-profile installations.
• Monessen’s unique 2-IN-1 FLEXIBLE-FACE SYSTEM field converts from a circulating to a radiant
system in seconds, providing the ultimate in installation and design flexibility, and only three sizes
are required for virtually any installation need.
• Features a fixed safety screen, concealed controls and a modular burner system.
• Smartline designer accessories allow flexibility in customizing your fireplace through a variety of
factory or field installed options.
• There are no hot pull screens to open or close, no unsightly controls or unattractive punched
louvers.
MCFS System
Control Panel
DFS and MCFS Vent Free Gas Fireplace Systems
FACING OPTIONS
DFS shown with Brushed
Pewter Arched Front, Black
Door Frame and Black Fire
Screen Doors
DFS shown with Brushed Pewter
Arched Front, Brushed Pewter
Door Frame and Brushed Pewter
Fire Screen Doors
DFS shown with Gold Filigree
Panels, Black Door Frame and
Gold Fire Screen Doors
Vent-free gas appliances continue to be the sensible choice when looking for a supplemental heating source. Since no outside
venting is required, all the heat stays in your home and the high heating efficiency provides comfortable warmth for only pennies an hour. And since vent-free appliances do not require electricity to operate, they are an excellent heat source during
power outages. Vent free gas appliances are environmentally clean, safe, and operate within industry indoor air quality standards as well as being design certified by CSA.
MCFS shown with Black
Arched Front, Pewter Door
Frame and Black Fire Screen
Doors
MCFS shown with Gold Arched
Front, Gold Door Frame and
Gold Fire Screen Doors
The
VENT•FREE
ADVANTAGE
OPTIONAL ACCESSORIES
DFS3224 with optional Dark Cherry
Surround and Hearth, brass louvers and
brass trim
MCFS36 with optional Honey Oak Surround
and Hearth, brass louvers, gold door frame,
gold fire screen doors and brass trim
DFS Fireplace System
32" and 36" HARDWOOD WALL AND CORNER
SURROUNDS AND HEARTHS ADD MORE DESIGN
FLEXIBILITY AND VALUE
Available in:
• Finished Honey Oak • Unfinished Oak
• Finished Dark Cherry • Unfinished birch
FACTORY INSTALLED OPTIONS
ALSO AVAILABLE AS FIELD INSTALLED ACCESSORIES
OPTIONAL ACCESSORIES FOR REMOTE
CONTROL MODELS
Variable Thermostat
Controlled Forced
Air Blower
Weathered Firebrick
Brass Louvers
Hand Held
On/Off Remote
Control.
Standard or Hi/Lo
Flame Adjustable
Operation.
On/Off Hand
Held Remote
Control with
Receiver.
7-Day Programmable
On/Off Wireless Wall
Thermostat, Battery
or 110 Receiver.
FIELD INSTALLED ACCESSORIES
WeatheredFirebrick
Curved
Brass Trim
Curved
Pewter Trim
Brass Louvers
Pewter Louvers
Curved Black
Tr im
Decorative Ceramic
Fiber Embers
MCFS Fireplace System
36" HARDWOOD WALL SURROUNDS AND HEARTHS
ADD MORE DESIGN FLEXIBILITY AND VALUE
Available in:
• Finished Honey Oak
• Finished Dark Cherry
Dark Cherry
Finish
Honey Oak
Finish
Oak Unfinished
-Paint/Stain
Ready
Birch Unfinished
-Paint/Stain
Ready
Hand Held
Thermostat
Remote Control
with Receiver.
Standard or Hi/Lo
Flame Adjustable
Operation.
Touch Light™
Table Top/Wall
Mount
TLM On/Off and
TLT Thermostat
Remote Control
with Receiver.
Sold by:
DFS/MCFS36-MHS3704
Rev. 07-04
Warning:
• It is recommended that the screen be used during operation of this log
set. Always ensure the screen has adequate spaces to allow for passage
of combustion air to the gas log set.
• Correct installation of the ceramic fiber logs, proper location of the
heater and periodic cleaning are necessary to avoid potential service
problems with sooting.
• Keep small chidren and animals away from the open flame of the gas log
set at all times.
• There may be a start-up odor associated with the heating of the logs.
The odor should diminish in 2-3 hours of operation with the burner at its
highest setting with the fan in the off position.
REGULATORY APPROVAL
The DFS and MCFS series has been tested and approved by CSA as an
unvented room heater to the latest ANS Z21.11 requirements. Approved for
installation in an aftermarket manufactured (mobile) home, where not prohibited by state or local codes. This unit complies with requirements to be
classified as a zero clearance unit.
SPECIFICATIONS
32" Corner 32" Corner 36" Corner 36" Corner
Surround Hearth Surround Hearth
Width of mantel 62-3/8" 62-3/8" 63-3/8" 63-3/8"
Height w/o hearth 48-1/4" 5" 48-1/4" 5"
Distance from
corner to front
center of mantel 35-1/2" – 37-1/2" –
Distance from
corner to front
edge along wall 44-1/8" – 47" –
Opening width 38" –
Hardwood Surround Dimensions
32" Wall 32" Wall 36" Wall 36" Wall *36" Wall *36" Wall
Surround Hearth Surround Hearth Surround Hearth
Width of mantel 50-1/2" 58" 54-3/8" 61-1/4" 58" 64-1/2"
Height w/o hearth 48" 5" 48-1/4" 5" 53" 5"
Depth 17-1/4" 21-3/8" 21-3/4" 25-1/2" 22" 25-1/2"
Opening width 38" – 42" – 42" –
Opening height 35-7/8" – 35-3/4" – 40-3/4" –
Width of mantel top 58" – 62" – 64-1/2" –
Depth of mantel top 21-1/8" – 25-1/2" – 25-1/2" –
149 Cleveland Drive • Paris, Kentucky 40361
www.monessenhearth.com
MADE IN U.S.A.
To avoid personal injury or property damage, the product described by this brochure must
be installed, operated and maintained in strict compliance with the instructions packaged
with the product and all applicable building or fire codes. Contact local building or fire
officials about restrictions and installation inspection requirements. All photographs and
drawings on this brochure are for illustrative purposes only and are not intended for, nor
should they be used as a substitute for the instructions packaged with the unit.
Appearance and specifications of the product are subject to change without notice.
© 2004 Monessen Hearth Systems, Inc.
MCFS36 DFS32/24 DFS36 DFS42
A 41-1/4" 37-1/4" 41-1/4" 47-1/4"
B 43-1/2" 37-3/4" 37-3/4" 37-3/4"
C 30-1/2" 28-3/4" 32-1/2" 38-3/4"
D 15-1/4" 14-3/8" 16-5/8" 19-3/8"
E 71-1/2" 60-3/4" 65-1/4" 70-3/4"
F 35-3/4" 30-3/8" 32-5/8" 35-3/8"
G 21" 16" 16" 16"
H 50-1/2" 43" 46-1/4" 50"
Product Specifications
Width
Height
Depth
Actual
Cert.
Framing
Actual
Framing
Actual
Framing
Model
MCFS36
DFS32
DFS36
Both
CSA
Both CSA
Both CSA
41"
37"
41"
41-1/4"
37-1/4"
41-1/4"
43"
37-1/2"
37-1/2"
43-1/2"
37-3/4"
37-3/4"
20-1/2"
16"
16"
21"
16"
16"
26"
20-1/2"
20-1/2"
DFS42
Both CSA
47" 47-1/4"
37-1/2"
37-3/4"
16"
16"
20-1/2"
Manual
Control
BTU (x1000)
*MCFS36
Thermostat
Control
BTU (x1000)
NG LP
LPNG
–
–
–
–
18-28 18-28 20-28
20-38 20-38
Millivolt
Control
BTU (x1000)
NG LP
20-38 20-38
20-36 20-36
18-28 20-28
25-38 30-38
25-38 30-38
25-38 30-38
25-38 30-38
Hi/Lo
Control
BTU (x1000)
LPNG
–
–
18-28 21-28
20-38 22-38
20-38 22-38
18-28
Radiant or
Circulating
Opening
Height
DFS3224
Both CSA
37" 37-1/4"
37-1/2"
37-3/4"
16"
16"
20-1/2"
20-38 20-38 30-3825-38 30-38 20-38 22-3825-38
Vent Free Fireplace System
Framing Dimensions
C
G
A
Inside Chase Installation
C
A
Recessed Installation
G
B
A
Stud Location
H
C
A
E
Corner Installation
D
G
F
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