MF FIRE CATALYST User manual

Revision #0021
Report # 055WS001S
Conforms to UL 1482-11 (R2015)
CATALYST
OWNER’S MANUAL
SafetyNotice: Please save these instructions for future reference.
Please read this entire manual before you install and use your
new room heater. Failure to follow instructions may result in
property damage, bodily injury, or even death. Contact local
building or fire officials about restrictions and installation
inspection requirements in your area. Do not install in a mobile
home!

1 | Page Catalyst Owner’s Manual | © MF Fire 2017
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Catalyst Owner’s Manual | © MF Fire 2017 Page | 2
Introduction
What you have in your hands is not the greatest wood burning device
ever invented –it is just the manual for the greatest wood burning
device ever invented.
Catalyst is the world’s first smart wood stove. We built the Catalyst
around state-of-the-art combustion techniques and using a
revolutionary smart controller that delivers efficient, clean, and safe
burning for you and your family.
As a result, we’ve won a few prizes. In the 2013 Wood Stove Design
Challenge, the prototype Catalyst won the Low Emissions Prize. In the
2014Wood Stove Design Challenge, the Catalyst won the Grand Prize.
In the MIT Clean Energy Prize, the Catalyst won the Energy Efficiency
Prize and the People’s Choice Award. Not a bad track record.
Before we built Catalyst we talked to hundreds of wood stove users,
and we heard the same thing over and over. Traditional wood stoves
are dirty, inefficient, and difficult to operate. We made Catalyst
differently. Unlike traditional wood stoves, with Catalyst all you need to
do is load it, light it, and lock it, and you can enjoy a clean and efficient
fire.
We at MF Fire are determined to give you a different experience than
with any other wood stove. We want every fire to be easy and
enjoyable.
If you ever have any questions, give us a call at 1-855-MFFire1 or
shoot us an email at [e-mail]. We’re happy to help at any time.
Thank you for your purchase of the Catalyst and welcome to the MF
Fire Family!
Sincerely,
The MF Fire Team

3 | Page Catalyst Owner’s Manual | © MF Fire 2017
Table of Contents
Introduction.......................................................................................... 2
Table of Contents................................................................................ 3
Safety Precautions .............................................................................. 5
Installation........................................................................................ 5
Operation......................................................................................... 5
Maintenance.................................................................................... 6
Features and Specifications................................................................ 7
Heating Specifications..................................................................... 7
Dimensions...................................................................................... 8
Emissions ........................................................................................ 8
Stove Installation................................................................................. 9
Planning the Installation.................................................................. 9
Stove Placement Requirements.................................................... 10
Standard Installation...................................................................... 11
Corner Installation ......................................................................... 12
Chimney Requirements................................................................. 13
Chimney Connector Requirements............................................... 14
Chimney Termination Requirements............................................. 15
Special Installation: Exterior Factory-Built Chimney..................... 16
Special Installation: Masonry Chimney......................................... 17
Special Installation: Masonry Fireplace......................................... 18
Installing the Soapstone................................................................ 19
Connecting the Combustion Fan................................................... 20
Connecting the Electronics............................................................ 22
Connecting the Smart Sensors ..................................................... 23
Initial Curing................................................................................... 23
How Catalyst Works.......................................................................... 24
Combustion Fan and Room Blower.............................................. 24
Turbo-Start..................................................................................... 25
Controlling the Burn....................................................................... 25
Reloading....................................................................................... 26
Controlling the Blower................................................................... 26
Wood Selection ............................................................................. 26
Ordinary Operating Sounds........................................................... 27
Operating Without Electricity......................................................... 27
Catalyst Smart App............................................................................ 28

Catalyst Owner’s Manual | © MF Fire 2017 Page | 4
Downloading the Catalyst Smart App ........................................... 28
Connecting To Your Catalyst ........................................................ 28
Stove Control Screen .................................................................... 29
Setting the Temperature................................................................ 30
Controlling Your Blower................................................................. 30
Monitor Stove Status..................................................................... 30
Notifications................................................................................... 31
Regular Maintenance and Troubleshooting...................................... 32
Glass.............................................................................................. 32
Disposal of Ashes.......................................................................... 32
Door Gaskets................................................................................. 32
Catalytic Combustor...................................................................... 33
Monthly Maintenance ........................................................................ 34
Creosote........................................................................................ 34
Soapstone (Optional)..................................................................... 34
Room Blower (Optional)................................................................ 34
Gasket ........................................................................................... 34
Annual Maintenance.......................................................................... 35
Exterior Paint................................................................................. 35
Glass.............................................................................................. 35
Catalytic Combustor Replacement.................................................... 36
Lifetime Limited Warranty.................................................................. 38
A. If warranty service is needed.................................................... 38
B. Conditions and Exclusions........................................................ 38

5 | Page Catalyst Owner’s Manual | © MF Fire 2017
Safety Precautions
Installation
The Catalyst must be properly
installed to prevent house fires.
Please strictly adhere to the
installation instructions.
The Catalyst must be
connected to a listed high
temperature chimney or
approved masonry chimney
with liner.
Do not install in a mobile home
We recommend you use
smoke and CO detectors
Contact your local
building officials to obtain
information on any local
wood stove installation
requirements.
Carefully route all power
cords through to avoid
contact with hot stove
surfaces.
Do not connect to or use
in conjunction with any air
distribution ductwork
unless specifically
approved for such
installations
Operation
The viewing door and back
panel of the Catalyst must be
shut and latched during
operation.
Do not touch the Catalyst
while hot. Young children
should be supervised while
the Catalyst is in use.
Never use gasoline, gasoline-
type lantern fuel, kerosene,
charcoal lighter fluid, or
similar liquids to start or
"freshen up" a fire in this
stove. Keep all such liquids
well away from the stove
while it is in use.
Never obstruct airflow
through the inlet vents or
exhaust vents
The Catalyst has been
designed for the burning
of cordwood only. Do not
attempt to burn any other
type of fuel in the
Catalyst.
Keep all flammable
objects (fabrics, paper,
wood, etc.) at least 1 yd
(1 m) from the front of the
Catalyst.
This wood heater has a
manufacturer-set minimum
Do not use chemicals or
fluids to start the fire.

Catalyst Owner’s Manual | © MF Fire 2017 Page | 6
low burn rate that must not be
altered. It is against federal
regulations to alter this setting
or otherwise operate this
wood heater in a manner
inconsistent with operating
instructions in this manual.
Hot while in operation. Keep
children, clothing and furniture
away. Contact may cause
skin burns.
Do not burn garbage or
flammable fluids such
as gasoline, naphtha or
engine oil
Never over-fire the
Catalyst, as it could
lead to a house fire. If
the unit or chimney
connector glows, you
have over-fired the unit.
Maintenance
Never attempt to modify or
repair the appliance beyond
instructions given in this
manual.
Empty the ash regularly and
dispose of it in a metal
container with tight lid.
Allow the Catalyst to cool
before conducting any
maintenance.
Inspect the chimney
connector at least twice
monthly.

7 | Page Catalyst Owner’s Manual | © MF Fire 2017
Features and Specifications
Heating Specifications
Catalyst is equipped with a 2.0 cubic foot firebox and accepts logs
more than 18” in length.
2,000 sq. ft.(175 m2) approximate maximum heating capacity. Heating
capacity will vary depending on the home's floor plan, degree of
insulation, and the outside temperature.
28,000BTUper hour(8kW)EPAcertifiedheatreleaserate,withactual
heat release rates ranging between 10,000 and 60,000 BTU per hour.
Exhaust: This is where
your chimney pipe, or
stack, attaches.
Soapstone: The
soapstone serves to
smooth heat delivery for
a long comfortable burn.
Blower vent:
Hot air from the
blower blows
out from this
gap and warms
your room.
Full-Fire View:
Three windows
means you can
see the
beautiful fire
from
everywhere in
the room.
Ash pan: Leftover ash
from your fire is
collected in the ash pan
to be emptied later.
Handle: Simply pull up
and out on Catalyst’s
custom wood handle to
open your door

Catalyst Owner’s Manual | © MF Fire 2017 Page | 8
Dimensions
All clearances, side, corner, and back, are measured from the largest
dimensions.
Emissions
U.S. Environmental Protection Agency certified to comply with 2020
particulate emission standards for single burn rate heaters. This single
burn rate wood heater is not approved for use with a flue
damper. Certified average emissions rate of 1.9 g/hr, tested to EPA
Method 28R and ASTM E2515-11.

9 | Page Catalyst Owner’s Manual | © MF Fire 2017
Stove Installation
Safety Notice: Please read this entire manual before you install
and use your new room heater. Failure to follow instructions may
result in property damage, bodily injury, or even death. Contact
local building or fire officials about restrictions and installation
inspection requirements in your area. Do not install in a mobile
home!
Planning the Installation
Proper care and attention to service helps to protect you from
unnecessary fires and carbon monoxide poisonings. To get the best
service and wood stove installation for your Catalyst wood burning
stove, we recommend Installers or Chimney Sweeps certified by the
Chimney Safety Institute of America (CSIA). The CSIA has been the
industry leader in chimney maintenance education since 1983.
To locate one of the more than 1,800 active CSIA Certified Chimney
Sweeps across North America, please use the CSIA Certified
Professional Locator on their website: http://www.csia.org/search.html
Check with your local building officials and your home insurance
company before installation. When this room heater is not properly
installed, a house fire may result. To reduce the risk of fire, follow the
installation instructions. Contact local building or fire officials about
restrictions and installation inspection requirements in your area.
If there are any major dents or other damage to your stove, please
report to MF Fire prior to installation.

Catalyst Owner’s Manual | © MF Fire 2017 Page | 10
Stove Placement Requirements
Catalyst must be placed in a room with a source of fresh air.
Stove must be placed so that no combustibles are within, or can swing
within 36" (914mm) of the front of the stove (drapes, doors, etc.).
Floor protection must extend around the front, sides, and rear of the
stove, according to listed clearance requirements below. Floor
protection must be made of a non-combustible material and at least
0.018” (0.45 mm) thick with a minimum R-value of 2.67 ft2•hr•°F/Btu/in.
Catalyst must also maintain the following minimum clearances to
combustibles (drywall, furniture, etc.):
Minimum Clearance Requirements
A Side wall to stovetop
20” (508 mm)
B Back wall to stovetop
12” (305 mm)
C Corner wall to stovetop
8” (203 mm)
D Connector to side wall
30” (762 mm)
E Connector to back wall
15” (381 mm)
F Connector to corner wall
18” (458 mm)
G Floor protection, side and back
8” (203 mm)
H Floor protection, front
I Floor protection, connector side
J Back wall to electronic enclosure
16” (407 mm)
2” (51 mm)
12” (305 mm)

11 | Page Catalyst Owner’s Manual | © MF Fire 2017
Standard Installation
Minimum Clearance Requirements
A Side wall to stovetop
20” (508 mm)
B Back wall to stovetop
12” (305 mm)
D Connector to side wall
30” (762 mm)
E Connector to back wall
15” (381 mm)
G Floor protection, side and back
8” (200 mm)
H Floor protection, front
16” (407 mm)
I Floor protection, connector side
2” (51 mm)

Catalyst Owner’s Manual | © MF Fire 2017 Page | 12
Corner Installation
Minimum Clearance Requirements
C Corner wall to stovetop
8” (203 mm)
F Connector to corner wall
18” (458 mm)
G Floor protection, side and back
8” (200 mm)
H Floor protection, front
16” (407 mm)

13 | Page Catalyst Owner’s Manual | © MF Fire 2017
Chimney Requirements
Do not connect Catalyst to a chimney flue serving any other appliance
or use in conjunction with any air distribution ductwork, unless
specifically approved. This room heater must be connected to:
1. A 6” (150 mm) diameter, UL 103 HT chimney, from a single
manufacturer
OR
2. A code approved masonry chimney with a flue liner.
Standard Chimney Arrangement
A. Chimney termination
15’/33’ (4.5/10m) min/max height
B. Roof penetration
C. Chimney sections
D. Ceiling penetration
E. Chimney connector
A
B
C
D
E

Catalyst Owner’s Manual | © MF Fire 2017 Page | 14
Chimney Connector Requirements
Chimney connector is required from the flue collar of the stove to the
factory-built chimney or masonry chimney. The chimney connector
must be 6” (152mm) diameter and a minimum 24 gauge black steel.
Aluminum or galvanized steel is not allowed –these materials cannot
withstand the flue temperatures and may give off toxic fumes when
heated.
The chimney connector may not pass through a ceiling, attic, roof,
closet, or any other concealed space (use listed UL 103 HT chimney –
see “Chimney Requirements for details). DO NOT USE CONNECTOR
PIPE AS CHIMNEY.
The chimney connector should be as short and direct as possible. No
more than 180oof elbows (two 90oelbows, or two 45o& one 90oelbow,
etc.) may be used for the entire system (connector and chimney). Do
not use “T” connections in installation. Horizontal runs should slope
upwards 1/4” (6mm) per foot and be a maximum 36” (914mm) long.
The chimneyconnector mustbe installed with the crimped end pointing
downwards. This prevents creosote from leaking to the exterior of the
pipe.
The chimney connector must be fastened to the stove and each
adjoining section (and chimney) and kept clean.
Each joint in the chimney connector must be hermetically sealed to
prevent smoke leakage using furnace cement, high temperature
silicone sealant or other suitable sealing medium. Smoke leakage from
the chimney pipe is a sign of improper sealing.

15 | Page Catalyst Owner’s Manual | © MF Fire 2017
Chimney Termination Requirements
Must have an approved cap (to prevent water from entering)
Must not be located where it will become plugged by snow or other
material
Must terminate at least 3' (914mm) above the roof and at least 2'
(610mm) above any portion of the roof within 10' (3.048M)

Catalyst Owner’s Manual | © MF Fire 2017 Page | 16
Special Installation: Exterior Factory-Built
Chimney
Catalyst may be used in conjunction with an exterior factory built
chimney provided that the chimney meets UL 103 HT requirements.
Special care must be taken regarding the wall thimble, or penetration
from the chimney connector pipe to the exterior chimney, if the wall
thimble must pass through an exterior wall. Here all chimney
manufacturer’s instructions must be followed, including guidance on
spacing to combustible surfaces, piping requirements, and liner
requirements. Check with local authorities before installation to ensure
all requirement are met.
Floor protection is required 2” on both sides of the chimney connector.
Minimum Clearance Requirements
I Floor protection, connector side
2” (51 mm)

17 | Page Catalyst Owner’s Manual | © MF Fire 2017
Special Installation: Masonry Chimney
Catalyst may be used in conjunction with a masonry chimney provided
all installation instructions are followed.
We strongly recommend a full reline when installing the Catalyst in a
masonry chimney. If the chimney does not have a clay tile liner, a full
reline is required. The chimney must be clean, undamaged, and meet
all local building codes.
Special care must be taken regarding the wall thimble, or penetration
from the chimney connector pipe to the masonry chimney, if the wall
thimble must pass through an exterior wall. Here all chimney
manufacturer’s instructions must be followed, including guidance on
spacing to combustible surfaces, piping requirements, and liner
requirements. Check with local authorities before installation to ensure
all requirement are met.

Catalyst Owner’s Manual | © MF Fire 2017 Page | 18
Special Installation: Masonry Fireplace
Catalyst may be used in conjunction with a masonry fireplace provided
all installation instructions are followed.
The entire fireplace must be clean, undamaged, and meet all local
building codes. This installation requires a full reline. The liner must be
stainless steel chimney connector or flexible vent pipe. Follow the liner
manufacturer’s instructions for installation and support.

19 | Page Catalyst Owner’s Manual | © MF Fire 2017
Installing the Soapstone
Catalyst’s soapstone pieces are designed to maintain a smooth even
heating while effectively directing your blower air into the room. To
install the soapstone, simply rest the two smaller soapstone side
panels on top of the stove and then rest the larger top panel on top of
the side pieces, as shown below. The soapstone must be installed
before attaching your Catalyst to the chimney connector.