Vermont Castings EWF36 Mounting instructions

EWF36A
Fireplace
Homeowner’s
Installation and
Operating Manual
Do Not Discard This Manual: Retain for Future Use
20005167 1/08 Rev. 14
5167
EPA36
cover
3/02
SAFETY NOTICE: IF THIS APPLIANCE IS NOT PROPERLY INSTALLED, OPERATED AND MAIN-
TAINED, A HOUSE FIRE MAY RESULT.
TO REDUCE THE RISK OF FIRE, FOLLOW THE INSTALLATION INSTRUCTIONS. FAILURE TO
FOLLOW INSTRUCTIONS MAY RESULT IN PROPERTY DAMAGE, BODILY INJURY OR EVEN
DEATH. CONTACT LOCAL BUILDING OFFICIALS ABOUT RESTRICTIONS AND INSTALLATION
INSPECTION REQUIREMENTS IN YOUR AREA.

2
Vermont Castings EWF36A
20005167
Introduction
Thank you for purchasing a Vermont Castings, EWF36A fireplace. An efficient fireplace carefully engineered to bring
you the latest in wood combustion principles and modern foundry technology.
You can count on years of comfortable heating and pleasurable fire viewing if you treat it properly and operate the
EWF36A according to the directions in this owner’s guide.
The EWF36A is listed by Underwriter’s Laboratories, and is in compliance with the standards set forth by the Federal
Environmental Protection Agency, 40 CFR Part 60.532(b), as stated on the permanent label attached to each appli-
ance.
This manual describes the installation and operation of the EWF36A wood heater. This heater meets the US Environ-
mental Protection Agency’s emission limits for wood heaters sold after July 1, 1990. Under specific test conditions this
heater has been shown to deliver heat at a rate ranging from 11,000 to 68,600 Btu’s/hr.
For more complete details on the EWF36A performance and specifications, please refer to Page 3.
The EWF36A is designed, tested and listed for burning wood. Do not burn other fuels.
Installation or service of this woodburning firep should only be completed by a qualified installer, preferably NFI or
WETT (Canada) certified.
Please read the appropriate sections of this manual before you install and use your EWF36A. For information on op-
eration and maintenance of the EWF36A, refer to Pages 17 and 20.
The EWF fireplace can use 100% outside air with the AKMST Outside Air Kits installed.
Failure to follow these instructions may result in property damage, bodily injury or even death.
Save These Instructions for Future Reference
Table of Contents
Introduction ................................................................ 2
Safety Information ..................................................... 3
Specifications ............................................................ 4
Planning Information ................................................. 7
Installation ................................................................. 8
Operation ................................................................. 18
Maintenance ............................................................ 22
Replacement Parts .................................................. 27
Optional Accessories ............................................... 29
Warranty .................................................................. 31
Proposition 65 Warning: Fuels used in gas, wood-
burning or oil fired appliances, and the products of
combustion of such fuels, contain chemicals known
to the State of California to cause cancer, birth de-
fects and other reproductive harm.
California Health & Safety Code Sec. 25249.6

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Vermont Castings EWF36A
20005167
Safety Information
Please Read This Manual Before Installing and Using Fireplace
IMPORTANT: Read all instructions and warnings carefully before starting installation. Failure to
follow these instructions may result in a possible fire hazard and will void the warranty.
Description
The EWF36A fireplace is a solid fuel, woodburning,
heat circulating fireplace.
Precautions
CFM Corporation fireplaces and component parts have
been highly tested and will operate safely when in-
stalled in accordance with instructions provided in this
manual. Carefully read and understand all instructions
before beginning installation.
If you notice any damage to fireplace or component
parts, immediately report damage to your CFM Corpo-
ration dealer.
Only use CFM Corporation components or the warranty
will be voided and a fire hazard may be created.
CFM Corporation warranty will be voided by and CFM
Corporation disclaims any responsibility for the follow-
ing actions:
• Installation by any other than a qualified
installer, preferably NFI or WETT (Canada)
certified.
• Installation of any damaged fireplace or chim-
ney component;
• Modification of fireplace, chimney assembly
or any component parts thereof; (except for
chase flashings as detailed in CFM Corporation
Chimney Top installation instructions).
• Installation other than as instructed by CFM
Corporation; or
• Installation and/or use of any component part
not manufactured or approved by CFM Corpo-
ration in combination or assembly with a CFM
Corporation fireplace system, notwithstand-
ing any independent testing laboratory or
other third party approval of such component
parts or accessory.
Any such action may possibly cause a fire hazard.
Consult local building codes to ensure that you are in
compliance before installing the fireplace.
This fireplace and chimney system must be vented to
the out-of-doors.
Do not obstruct or modify air inlets/outlets in any
manner.
Do not install combustible materials on any of the
black fireplace surround.
Burn only solid wood fuel.
The EWF36A is intended for operation with the
doors closed or fully open only with the optional
spark screen in place.
Do not install a solid fuel burning insert or other
products not specified for use with this fireplace.
This fireplace is not approved for installation in
mobile homes.
NOTE: Hairline cracks in hearth brick and ash lips
are not a safety issue and do not need to be re-
placed.
Drafts
The fireplace should not be located in areas that create
drafts (ie: frequently opened doors and central heating
air inlets/outlets) that hamper the normal flow of air into
the fire.
EWF36A
Listed
UL / ULc127
Standard for Factory Built Fireplaces

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Vermont Castings EWF36A
20005167
Specifications
Range of heat output* ............... 11,300 - 75,500 Btu/hr
Maximum heat output** ..... in excess of 100,000 Btu/hr
EPA emissions rating (g/h, catalytic) .......................2.4*
Area heated*** ............... Up to 2500 sq. ft. (558 sq. m)
Size of wood splits .....................18” - 24” (450-610mm)
Fuel Capacity ........................................... 40lbs. (18kg)
Loading ..................................................................Front
Flue size ..................................................... 8” (200mm)
Fireplace weight ................................................ 741lbs.
Primary Air Control ............................................ Manual
Glass panel ......................... High-temperature ceramic
Flue exit position ..................................................... Top
Blower rating ...............................160cfm. (115V, 60Hz)
*Under specific test conditions used during EPA emis-
sions standard testing.
**This value can vary depending on how the unit is
operated, and the type and moisture content of the fuel
used. Figure shown is based on maximum fuel con-
sumption obtained under laboratory conditions and on
average efficiencies.
***These values are based on operation in building-
code conforming homes under typical winter climate
conditions. If your home is of nonstandard construction
(e.g. unusually well insulated, not insulated, built under
ground, etc.) or if you live in a more severe or more
temperate climate, these figures may not apply. Since
so many variables affect performance, consult your Ver-
mont Castings’ Authorized Dealer to determine realistic
expectations for your home.
EWF36A
" (25mm)
"
"
(16mm)
Recessed
Nailing
Flange
5167
EPA36 specs
13" Dia.
(343mm)
Rough Opening Width 43"
Rough
Opening
Height
Rough
Opening
Depth
67" (1708mm)
67" (1708mm)
47" (1207mm)
5/8" (16mm)
95" (2413mm)
27"
(686mm)
26"
(660mm)
8"
(216mm)
(1092mm)
41" (1041mm)
47"
(1207mm)
51"
(1308mm)
36" (914mm)
41" (1041mm)
14"
(362mm)
14"
(362mm)
12"
(327mm)
4"
(124mm)
12"
(318mm)
Electrical
Access
Outside
Air
12"
(327mm)
EWF36A Woodburning Fireplace
Fig. 1 EWF36A specifications and framing.

5
Vermont Castings EWF36A
20005167
Fig. 2 Fireplace and chase parts identification.
FP554a
FP554a
BFC
Fireplace and chase parts identification
circulating model
8/21/00 djt
Chase Installation
Insulation methods shown are
optional for cold climate, not a
requirement for unit operation.
Termination Cap
Storm Collar
Pan Flashing
Draftstop
Batt Insulation
(cut out around fire-
stop)
Firestop
Ceiling Level
Standoff
Metal Safety Strips
(1,2 or 3 pieces)
Batt Insula-
tion MUST be
used in the
Chase.
Outside Air
Cover Plate
Andiron
Brick Ledge

6
Vermont Castings EWF36A
20005167
D
Rise
BG
H
B
Offset
C
E
6 FT.
G
H
A
Hearth
Floor
Chimney
Section
CHIMNEY FLUE EXIT
Elbow
FP269
MBUF
5/16/96
rev. 5/25
TCS8A
Support
Example 1 Example 2 Example 3
Chimney Requirements - Offset Installations
Notes: G + H cannot exceed 20 feet.
Air Space Clearances: “S” Series (3-wall) = 2” Min. to Combustibles
Illustration Key
The following safety rules apply to
offset installations (letters correspond
with illustration above):
A. Height of the chimney is measured
from the hearth to the chimney exit.
EWF36A
Maximum: 50’
Minimum:
Without Elbows 17’0”
With 2 Elbows* 19’0”
With 4 Elbows* 21’0”
B. Do not use more than 4 elbows per
chimney.
Attach the straps of the return (top)
elbow to a structural framing member.
The offset (first) elbow of any pair does
not have straps.
FP269
C. The chimney cannot be more than 30˚
(45˚ in Canada) from the vertical plane in
any installation*.
D. The maximum length of the angled run
of the total chimney system is 20 feet. (G
plus H cannot exceed 20 feet.)
E. A chimney support (Model TCS8A)
is required every 6 feet of angled run of
chimney. Chimney supports are required
for every 30 feet and 60 feet of vertical
chimney height above the hearth.
Determine the offset distance of your
chimney arrangement from the centerline
of the fireplace to the centerline of the
chimney where it is to pass through the
first ceiling.
NOTE: This offset distance may not be
your full offset distance. See Examples 2
and 3.
Fig. 3 Chimney system requirements.
FP282
0 0 0 0 0 3” 11”
1 0 0 0 0 8¹⁄₄" 20"
0 1 0 0 0 11¹⁄₄" 25¹⁄₄"
2 0 0 0 0 13¹⁄₂" 29¹⁄₄"
1 1 0 0 0 16¹⁄₂" 34¹⁄₄"
0 0 1 0 0 20¹⁄₄" 40³⁄₄"
2 1 0 0 0 21³⁄₄" 43¹⁄₂"
0 0 0 1 0 26¹⁄₄" 51¹⁄₄"
0 1 1 0 0 28¹⁄₂" 55¹⁄₄"
1 0 0 1 0 31¹⁄₂" 60¹⁄₄”
0 1 0 1 0 34¹⁄₂" 65¹⁄₂"
0 0 2 0 0 37¹⁄₂" 70³⁄₄"
1 1 0 1 1 41¹⁄₂" 77³⁄₄"
0 0 1 1 1 45" 83³⁄₄"
0 1 2 0 1 47¹⁄₄" 87¹⁄₂"
0 0 0 2 1 51" 94"
0 1 1 1 1 53¹⁄₄" 98"
0 0 3 0 1 56¹⁄₄" 103¹⁄₄"
0 1 0 2 1 59¹⁄₄" 108¹⁄₂"
0 0 2 1 1 62¹⁄₄" 113¹⁄₂"
0 1 3 0 1 64¹⁄₂" 117¹⁄₂"
0 0 1 2 1 68¹⁄₄" 124"
0 1 2 1 1 70¹⁄₂" 128"
0 0 0 3 1 74¹⁄₄" 134¹⁄₂"
0 1 1 2 2 78" 140³⁄₄"
0 0 3 1 2 81" 146"
0 1 0 3 2 84" 151¹⁄₄"
0 0 2 2 2 87" 156¹⁄₂"
0 1 3 1 2 89¹⁄₄" 160¹⁄₄"
0 0 1 3 2 93" 166³⁄₄"
0 1 2 2 2 95¹⁄₄" 170³⁄₄"
0 0 0 4 2 99¹⁄₄" 177³⁄₄"
0 1 1 3 2 101¹⁄₄" 181³⁄₄"
0 0 3 2 2 104¹⁄₄" 186¹⁄₄"
0 1 0 4 2 107¹⁄₄" 191¹⁄₂"
0 0 2 3 2 110¹⁄₄" 196³⁄₄"
0 1 3 2 3 114" 203¹⁄₄"
0 0 1 4 3 117³⁄₄" 209³⁄₄"
0 1 2 3 3 120" 213¹⁄₂"
0 0 0 5 3 123³⁄₄" 220"
30˚ Elbow Offsets
1’ 1¹⁄₂'3’ 4’
Chimney Support
Offset Rise
FP282
MBUF
5/26/96
Offset
Rise
30°
Return
Elbow
30°
Return
Elbow
30°
Offset
Elbow
30°
Offset
Elbow

7
Vermont Castings EWF36A
20005167
Planning Information
Determine how the chimney will be run, length of run
and chimney components required to complete the
job. (Fig. 4) Never install a chimney below minimum
heights.
In planning a chimney system, it is important to know:
1. The height of a chimney is measured from the hearth
to the exit point on the termination.
2. A chimney cannot be offset more than 30° from a
vertical plane.
3. A chimney may run straight up or it may be neces-
sary to offset it to avoid obstructions.
4. The maximum length of an angled run (total chimney
system) is 20 feet.
5. No more than 2 offsets (4 total 30° elbows in U.S./or
2 total 45° elbows in Canada) per fireplace may be
used.
6. A guy wire stabilizer is required for chimneys extend-
ing more than 6’ (1.8m) above a roof line.
The Ten Foot Rule
Major U.S. building codes specify a minimum chimney
height above the roof top. The “Ten Foot Rule” is a fire
safety rule and not a draft rule. To ensure proper draft,
it is recommended that you always meet or exceed the
“Ten Foot Rule,” especially when installing a termination
on a high pitch roof. (Fig. 5)
The key points of the “Ten Foot Rule” are:
1. If the horizontal distance from the chimney to the
peak of the roof is 10’ (3m) or less, the top of the
chimney must be at least 2’ (610mm) above the peak
of the roof, but never less than 3’ (914mm) in height
above the highest point where it passes through the
roof.
2. If a horizontal distance from the chimney to the peak
of the roof is more than 10’ (3m), a chimney height
reference point is established that is on the surface
of the roof a distance of 10’ (3m) from the chimney in
a horizontal plane. The top of the chimney must be
at least 2’ (610mm) above the reference point, but
never less than 3’ (914mm) in height above the high-
est point where it passes through the roof.
2' Min.
2' Min.
3'
Min.
0 To 10'
3'
Min.
0 To 10'
AC246
4/1/96
Reference
Point
AC246
Fig. 5 Ten Foot Rule illustration.
Planning an installation is very important to ensure
safety and to save time and money. An installer must
predetermine where a fireplace will be set and how the
chimney system will be run.
NOTE: If installing the EWF36CFTK at a later date and
if the hearth is being raised in front of the firepalce, the
fireplace must be raised to the same height.
Mounting the Fireplace
The fireplace is shipped with lifting handles attached to
each side with lifting straps. NOTE: The lifting straps
are intended for ligting unit off of the skid and final po-
sitioning. Unit should remain on skid until final position-
ing. After fireplace is in position, the lifting handle and
straps may be removed or left in place.
A fireplace may only be mounted on the following sur-
faces:
1. A flat combustible surface.
2. A raised wooden platform.
3. A concrete block or other solid object placed beneath
each of the four (4) corners of the fireplace.
The fireplace must be spaced 1” from a combustible
back wall and 1” from a combustible side wall or sup-
port. (Page 13, Fig. 17)
Planning the Chimney Run
L1
L1
LTTOTAL
LENGTH
(LT)
INSTALLED
LENGTH
(L1)
"
"
"
"
"
"
"
"
FP288A
MBUF-INSTALLED LENGTH
Triple wall
1/28/99 djt
TRIPLE
WALL
81
818
83
84
FP288a
Fig. 4 Installed lengths of chimney sections.

8
Vermont Castings EWF36A
20005167
Chimney Supports
The chimney system is supported by the fireplace for
vertical chimney heights less than 30’ (9m) above the
hearth. Chimney supports are required if the vertical
height exceeds 30’ (9m). Locate chimney supports
at ceiling holes or other structural framing at 30’ (9m)
heights. Spacing between chimney supports must not
exceed 30’ (9m). Use Chimney Support Model TCS8A.
(NOTE: The TCS8A cannot be mounted directly to
the fireplace.) Support provided by elbow straps fulfills
the support requirement only if they are spaced as pre-
viously described. (A chimney support is 2¹⁄₂" (64mm)
long when installed.)
Angled chimney runs require a support every 6’ (1.8m)
in addition to the elbow straps. Chimney supports are
used for this function. (Fig. 6)
FP284a
TCS8A
8/21/00
Chimney Sup-
port Strap
TCS8A
FP284a
Fig. 6 Chimney support installation.
Chase Installation
A chase is a vertical box-like structure which encloses
the fireplace and/or chimney. Chases are typically built
on the outside of the house with fireplace opening cut
into the outer wall of a room. (Page 5, Fig. 2)
If you need help in determining fireplace location or how
the chimney system should be run, contact your Ver-
mont Castings dealer for assistance.
Insulating Fireplace Enclosure
for Cold Climates
If you live in a cold climate, it is not required but
highly recommended that you insulate fireplace
enclosure to eliminate cold air penetration as much as
possible.
Insulate base of fireplace with a noncombustible
insulation rated for a minimum of 300° F. Insulating
is very important for outside wall installations over
a concrete slab. If fireplace is installed on a platform,
insulation should be placed on top of the platform
before fireplace is set. (Fig. 7)
When a fireplace is installed in a chase or on an
outside wall, enclosure should be treated like any
outside wall in a home. Insulation should be installed
on the inside wall as well as the outside wall(s). In a
chase, it is also a good idea to install a firestop at the
first ceiling level above the fireplace and enclose the
chase with sheeting material. Insulation may then be
installed above sheeting material to assure the space
around the fireplace is totally protected. (Fig. 2)
When installing the chimney, DO NOT caulk between
outer pipe and firestop. It is vital that some air be al-
lowed to flow through this very thin gap.
CAUTION: When installing a fireplace in an insu-
lated enclosure, be sure all required air spaces
are maintained. (Page 13, Fig. 17)
Installation
FPC555a
Platform insulation
BFC model
8/21/00 djt
Hard
Flat
Surface
Insulation
Platform
FPC555a
Fig. 7 Insulating between platform and fireplace.

9
Vermont Castings EWF36A
20005167
Framing
Framing can be constructed before or after the fireplace
is set in place, however, most installers build the frame
before setting the fireplace.
Frame fireplace with 2 x 4 lumber or heavier materi-
als. Refer to framing dimensions in Figure 1 for basic
fireplace specifications.
NOTE: Framing should be positioned to accommodate
wall covering and fireplace facing material.
EB1 (Receptacle) Hookup
Option for Circulating Models Only
Wiring should be installed by a certified electrician.
Turn off circuit breaker before wiring models.
Once fireplace is secured, complete wiring the fan kit.
Remove knockout in the center of the back of the EB1
and install listed cable clamps. Feed electrical wire
through listed cable clamp leaving approximately six (6)
inches of wire exposed through the EB1. Secure listed
cable clamp to the wire.
Attach white wire from power source to one (1) wire
of receptacle and secure with nut. Attach black wire
from power source to the other wire of receptacle and
secure with nut. Be sure nuts are secured tightly.
Secure EB1 assembly to inside of electrical box cover-
plate using two screws. Attach cover to face of the EB1
while being careful to position excess wire completely
within the EB1, then attach coverplate to fireplace.
Chimney Set-Up
Since you have already planned the chimney run, you
should know exactly how the installation is to be ac-
complished - how much pipe is required, the number of
elbows, if any, and type of termination to be used.
CAUTION: Report to your dealer any parts damaged
in shipment, specifically check the end connection of
chimney sections and elbows.
NOTE: The EWF36A fireplace must use CFM Corpora-
tion model triple wall 8” chimney components only. The
installation procedure described in this manual applies
only to this system.
Straight-Up Chimney Installation
To mark the centerline of the flue, put the fireplace
in final position and measure out from the wall: 9¹⁄₂"
(241mm). Mark a spot on the ceiling directly above the
fireplace. Draw a line parallel to the back wall through
this mark. (Fig. 8)
Using a plumb bob positioned directly over center point
of fireplace flue collar, mark the ceiling to establish the
chimney center point. (Fig. 8)
Offset Installation
In order to clear an obstruction, it may be necessary to
offset chimney from vertical. This is accomplished by
using elbows. Use the 30˚ Offset Elbow table on Page 6
to determine proper offset and parts required.
Each offset requires two (2) elbows. The second elbow
is equipped with support straps. It is very important to
install the second elbow in each offset as close to the
ceiling or support as possible so that the elbow straps
can be secured to framing members to help support the
weight of the chimney.
Determine offset distance of your chimney arrangement
from centerline of fireplace to centerline of chimney
where it is to pass through ceiling.
Locate center point of the chimney on ceiling as though
a straight up chimney arrangement is to be used. Mea-
sure your offset dimension from straight up chimney
center point on ceiling.
FPC556a
EPA36
LOCATE CENTER LINE
Circulating model
3/20/02 djt
9"
(241mm)
Chimney Centerline
Actual Centerpoint
Plumb Line
Plumb Bob
Imaginary Cen-
terpoint
FPC556a
Fig. 8 Locate centerline of chimney with plumb line.

10
Vermont Castings EWF36A
20005167
Ceiling Chimney Hole/
Possible Obstructions
The size of the hole in ceiling will vary with the angle at
which the chimney passes through ceiling.
Drive a nail up through ceiling at marked chimney
center point. Go to floor above and see where hole
will be cut. Check to see where existing ceiling joists
and other possible obstructions are located...i.e. wiring,
plumbing etc... If necessary, re-position chimney and/or
fireplace to avoid obstructions.
Cutting the Hole
Cover fireplace collar opening and cut proper sized
chimney hole in chimney.
Framing the Ceiling Hole
Frame the ceiling chimney hole as shown in Figure
10. It is good practice to use framing lumber that is the
same size as the ceiling joists; this is a requirement at
attic level.
The following table gives firestop spacer model num-
bers:
FP551b
17 1/2"
Framing chimney hole
5/13/99 djt
Existing
Ceiling
Joists
17¹⁄₂”
(445mm)
17¹⁄₂”
(445mm)
Chimney
Hole
Ceiling
New Framing
Members
FP551b
Fig. 10 Typical frame for ceiling chimney hole.
The inside dimension of the frame must be the same
as the hole size selected from Figure 9 in order to
provide required the 2” (51mm) air space between the
outside diameter of the chimney and the edges of the
framed ceiling hole.
Positioning, Safety Strips,
Securing the Fireplace
Slide fireplace into position.
Safety strips are used to ensure that any combustible
materials in front of the fireplace are protected even
though a noncombustible hearth extension is required.
When the finished extended hearth is added, the top
of the finished hearth must be flush with the bottom of
the fireplace. “Z” shaped metal safety strips have been
supplied with the fireplace and are required for instal-
lation. The safety strips provided have a 1” offset. For
applications with a greater offset, “Z” shaped strips will
have to be fabricated of metal. Overlap safety strips at
least 1/2” to provide a positive joint. The safety strips
must also extend at least 1¹⁄₂” (38mm) beyond the sides
of the fireplace. (Fig. 11)
NOTE: Safety strips are not required over noncombus-
tible floors where all supports at the base of the fire-
place are noncombustible.
Two (2) nailing flanges are supplied with the fireplace.
To level the box and secure it firmly in place, remove
the nailing flanges from the hearth and install at the
sides of the fireplace as shown in Figure 12.
WF557
BR
11/10/97
“Z” Metal Safety
Strips (1 or 2 pcs.)
“Z” Safety
Strip
Hearth Ext.
Fire-
place
Plat-
form
FP557b
1¹⁄₂”
(38mm) 1/2” Min.
Overlap
Fig. 11 Safety strip installation.
Decorative
Hearth
Face
Angle of Chimney at Ceiling
Size of Chimney Vertical 30°
FS2A FS6A
8” Flue 17¹⁄₂” x 17¹⁄₂” 17⁷⁄₈” x 29⁵⁄₈”
(445 x 445mm) (454 x 753mm)
Fig. 9 Ceiling chimney hole sizes necessary for installing
firestop spacer.
Chimney Hole Size

11
Vermont Castings EWF36A
20005167
Installating Outside Air Kit
An outside air kit may be installed on the EWF36A. If
desired, or if local codes mandate the use of an air kit,
then two (2) AK-MSTs are required to complete the
installation (from air kit to the outdoors). If the outside
air kits are to be used, the AK-MSTs MUST be installed
BEFORE the fireplace is enclosed.
NOTE: Air duct assemblies must be installed in con-
junction with the AK-MST or cold air will enter the home.
(Fig. 14)
NOTE: Four (4) inch Class 1 air duct, material or metal
duct (not supplied) may be used with AK-MST. (For
installation in New York State, only aluminum, non-
combustible flexible or type “O” metal ducting is
permissible.)
Installation Precautions
The duct termination should be located so it is exposed
to an out-of-doors opening at least 100 square inches. If
the duct termination must be located in a crawl space or
basement, be sure the termination area has 100 square
inches of ventilation opening to outside air.
The duct termination must be located so it does not
compete for air flow with exhaust fans, gas vent hoods
or other air consuming devices or appliances. It must
not be obstructed by rafters, insulation materials or
other obstructions. The less restrictive the air supply,
the better the AK-MST will perform.
It is a good practice to protect your hands and eyes
during installation by wearing work gloves and safety
glasses.
CAUTION: Do not install termination into a garage
or other area that could contain flammable liquids
or fumes, or into an attic space.
Installation Instructions
Determine the location of the fireplace as described
in the fireplace Installation Manual. Then plan location
of the duct termination and the route of the duct run
between the fireplace and the duct termination.
Duct run must be limited to a maximum distance of 40
feet from the fireplace pipe collar to duct termination.
This will provide the least restriction to air flow. No more
than four (4) 90° elbows can be used. Duct run may
be horizontal, vertical, inclined or any combination of
these. Vertical duct runs must be at least three (3) feet
below the fireplace chimney flue exit. (Fig. 13) You are
now ready to install the AK-MST Outside Air Kit.
FP1060
AKMST installation
7/6/00 djt
Duct Termination
Must be More Than 3’
Below Chimney
40’ Max.
Duct Run
Duct Termi-
nation Ceiling
Attic
Duct
Soffit Termination
Exterior Wall
Rain Cap
Duct Termina-
tion
40’ Max. Duct Run
Duct
Exterior Wall Termination FP1060
Fig. 13 Typical installations.
Fig. 12 Fasten fireplace in position.
Nail Top Stand-
offs
Nail Side
Nailing
Flanges
FP1197
FP1197
EPA36
nailing flanges
3/20/02 djt
1. Remove and discard the outside air cover plate
located at the center of both sides of the fireplace.
Use care not to rub against the sharp edges of this
opening to avoid cuts. Remove the four (4) screws

12
Vermont Castings EWF36A
20005167
Installing the Chimney System
Start by attaching the first chimney section to the collar
on top of the fireplace.
Install the pipe as pictured in Figure 16. When you
get a good lock, you will hear the pipe clearly snap
together. Once sections are snap-locked in place, it is
extremely difficult to get them apart. Make sure the
pipe is firmly snapped and locked together as each
pipe section is mounted.
When installing elbows, only outer pipe will snap- lock.
Middle pipes simply slide into position. Be sure to
always attach straps on upper elbow to a structural
framing member. (Fig. 17)
Continue installing the pipe as required until pipe is
installed up through the ceiling. At this point, you must
install a firestop spacer.
FP270/271
CR Series
2/19/99 djt
Support Structure
Ceiling Hole
Framing
Elbow Strap
(must be tight)
Elbow Strap
Angled Strap
Angled Firestop
Chimney Support Strap
(must be tight)
FP270/271
Fig. 17 Attach straps to a structural framing member.
exposed when cover plate is removed. Retain for
future use.
2. Slide the two (2) air duct assemblies provided with
the unit into the openings on each side of the unit.
(Fig. 14)
3. Attach the air duct assemblies to the inside panel
with four (4) screws removed in Step 1. (fig. 14)
FP1061
AKMST
rain cap
7/6/00 djt
Caulking
Wall
Duct Termination
Rain Cap
FP1061
Fig. 15 Caulk and install duct termination/rain cap in place.
UP
FP1198
EPA Pipe install
Circulating models
3/20/02 djt
Pipe Section
Pipe
Rim
Hem
Lance
Pipe
Hem
FP1198
Fig. 16 Install pipe, listening for the snap-lock to fasten.



Air Duct Assembly
AK-MST
FP1654
Fig. 14 Air duct assembly.
4. Attach the inlet collar with four (4) #10 screws to the
side near the bottom of the fireplace. Slide the duct
over the collar and attach the duct to the collar using
the plastic tie straps or three (3) screws (screws not
provided). Continue attaching the ducting together
using three (3) screws at each joint until you have
installed sufficient duct to arrive at your duct termina-
tion location.
5. At the termination end, install the duct termination.
This should be installed from the outside of the
home. Cut a hole in the desired location approxi-
mately 4¹⁄₂” in (114 mm) diameter, caulk around the
hole, and slide the termination through the opening
from outside the home. The termination/rain cap
should be caulked around its perimeter to assure a
tight seal. The rain cap opening should be positioned
downward. (Fig. 15)
The AK-MST Outside Air Kit is now installed and ready
for use.

13
Vermont Castings EWF36A
20005167
Installing the Firestop Spacer
in the Ceiling Hole
A firestop spacer is used to keep pipe spaced properly
and required for safety.
Nail the firestop spacer (at each corner) to the framing
members of the ceiling hole. NOTE: A firestop spacer
is not required at the roof.
Hole sizes listed in Figure 9 for angled firestop spacers
provide minimum required air space to chimney pipe for
ceiling thickness up to 8” (203 mm). When combined
thickness of ceiling material, ceiling joists and flooring
material exceeds 8” (203 mm), adjustments must be
made in framing to assure that minimum air spaces to
chimney are maintained.
Proper Firestop Spacer Installation
Figure 18 shows different installation procedures for
both an area that is an attic and an area that is not an
attic.
If the area above the ceiling is not an attic, position the
firestop spacer with the flange on the ceiling side and
the angled portion extending up into the hole.
If the area above the ceiling is an attic, position the
firestop spacer with the flange on the top of the framed
hole and the angled portion extending down into the
hole.
Firestop spacers are not available for, nor are they
required on vertical walls.
DO NOT put any sealant around the area where the
outer pipe slides through the firestop spacer. If you seal
this area, it may cause a fire hazard.
FP593
SR/C
11/20/97
Nails (4)
Attic Installation
Joist
Firestop Spacer
Joist
Firestop Spacer
Nails (4)
Ceiling Installation
FP593
Fig. 18 Firestop spacer installations.
Canadian Requirements
for Insulation Shield
In Canada, an attic insulation shield is required to
prevent attic insulaiton from contacxting the chimney
section. NOTE: If the attic insulation shield is used, the
firestop is not required in the attic installation. Framing
dimensions fr the chimney hole should measure 17¹⁄₂” x
17¹⁄₂” (445 x 445 mm). An attic shield MUST be installed
on top of attic joists (above the floor level). (Fig. 19)
NOTE: In the U.S., it is a good idea, although not al-
ways required, to install an attic insulation shield where
blown-in insulation is planned to be used in the atic.
IGF263
MBUF
5/9/96
Attic Insulation
Shield
Nails
(4 Required)
Attic Joist
Ceiling
Base
Flanges FP263
Fig. 19 Attic shield installation (Canadian requirement).
Continue Installing Pipe to Complete Run
Continue attaching pipe sections to complete system
to next level always being careful that the pipe is firmly
snapped locked in place before proceeding to next pipe
section.
Chimney Supports
If chimney supports are required, they are installed the
same as elbows. Nail chimney support straps to adja-
cent structural framing, as shown on Figure 16. Bend
straps as necessary and make sure they are secure so
they will support the weight of the chimney. A chimney
support is 2¹⁄₂" (64 mm) long when installed. Consider
this dimension when determining how many straight
chimney sections are needed.
NOTE: Chimney supports are generally used in long
runs in a chase installation.
Additional Ceilings
If you encounter additional ceilings, repeat same steps
required for first ceiling installation. See firestop illustra-
tion in Figure 18.
NOTE: If the attic insulation shield is used, the
firestop is not required in the attic installation.

14
Vermont Castings EWF36A
20005167
Penetrating the Roof
Run pipe to roofline. Since chimney system must be
vented to the out-of-doors, you must use an approved
CFM Corporation termination.
If a chase is used, refer to the installation manual pro-
vided with the termination cap.
Locate Chimney Centerpoint on Roof
Use same procedure detailed in locating center point of
the flue system.
Drive a nail up through roof at the center point. This will
determine center point on outside of the roof.
Cut and Frame Roof Hole
Size of roof hole varies with the type of chimney ter-
mination installed. Refer to installation instructions
provided with CFM Corporation chimney termination to
find correct size of roof hole.
There must be a 2” (51 mm) air space between out-
ermost portion of chimney sections and any adjacent
combustible surfaces. (Combustible surfaces include
burnable materials such as: ceiling members, joists,
flooring, combustible insulation and roof structures.)
WARNING: Do not pack required air spaces with
insulation or other materials.
Mark an outline of the roof hole around the center of the
point nail. NOTE: Hole dimensions given in the chim-
ney top installation instructions are horizontal dimen-
sions; therefore, the hole size must be marked on the
roof accordingly.
Cover the opening of the installed chimney so debris
cannot get into the system.
Cut and frame the hole. It is good practice to use fram-
ing lumber that is the same size as the rafters. Install
the frame securely because the chimney top and flash-
ing anchored to the frame must be able to withstand
heavy winds.
Install Remainder of Chimney Sections
Since you have already preplanned the height of your
termination according to the Ten Foot Rule, continue to
install pipe to the predetermined height.
Check the chimney top installation instructions for
details on how high above the roof top the chimney sec-
tions (all pipes) should extend.
Install Top Housing or Termination
Follow the installation instructions provided with the
chimney termination you have selected.
FP1199
EPA36
AIR SPACES
circulating models
3/20/02 djt
Air Space Clearances
Combustible framing material MUST NOT
penetrate AIR SPACE (shaded areas)
Standoff
2”
(51mm)
Firestop
1” (25mm)
Space to Back
1” (25mm)
Air Space
to Sides
Wall
Shield
0” Clearance
to Floor
Hearth Extension
FP1199
Fig. 20 Minimum clearances to combustibles.
1” (25mm) Air
Space to Sides
NO mate-
rial may
cover cast
face
Installing Chimney in a Chase
Refer to Figure 2, Page 5 for an illustration of a typical
chase installation.
CAUTION: Treatment of firestop spacers and construc-
tion of chase may vary with type of building. These
instructions are not a substitute for local building codes.
You must check your local building codes to determine
specific requirements for your city or state. NOTE:
Other building materials may be required in addition to
CFM Corporation Firestop Spacers.
Finishing
CAUTION: All joints between the finished wall and
the fireplace surround (steel front) must be sealed with
noncombustible material to prevent cold air leakage into
the room. (Fig. 20)
NOTE: No material may cover black cast face.

15
Vermont Castings EWF36A
20005167
Finish Wall
Finish the wall with material of your choice. Do not
install a combustible mantel shelf less than 12” (305
mm) above the firebox grille opening. Do not install
a mantel face plate less than 6” (159 mm) from top
of grille opening. (Fig. 20) If a combustible material is
used below a flat mantel shelf, consult your local build-
ing codes for minimum clearance from top of fireplace
opening to bottom of mantel shelf.
All joints (top, bottom and sides) where wall or deco-
rative facing material meets fireplace surround must
be completely sealed with a noncombustible material.
(Figs. 21 and 25)
NOTE: No side wall protection is required for fireplaces
installed at 45° to two (2) side walls (corner installation).
FP531
Fireplace surround detail
1/29/99 djt
Must be sealed with
noncombustible material
Mantel Shelf Side View
Finished Wall
2 x 4 Stud
Standoff
Cast Front
See mantel drawing for
shelf-to-grille dimension
1” (25mm)
Fireplace
Front (Steel) 2 x 4 Stud
FP1200
Fig. 21 Finishing materials placement.
Brick Ledge
Noncombustible Finish Mate-
rial Only in this Area
Top View
Mantels
The height that a combustible mantel is fitted above the
fireplace is dependent on the depth of the mantel. This
also applies to the distance between the mantel leg (if
fitted) and the fireplace.
For the correct mounting heights and widths, refer to
Figures 22 and 23. When using paint or lacquer to finish
the mantel, such paint or lacquer must be heat resistant
to prevent discoloration.
FP1398
Fig. 22 Combustible mantel minimum opening.
FP1398
wood mantels
8/18/03 djt
6"
(159mm)
Min.
12"
(305mm)
Min.
1"
(38mm)
12"
(305mm)
Max.
Combustiible
Mantel and
Trim Finished Wall
Header
Standoff
Noncombustible
Material
Brick Ledge
GrilleOpening
Fireplace Front
MA81
Fig. 23 Combustible mantel clearances.
MA81
rev. 8/5/97
*
1"
Ref.
**
Combustible materials
are permitted within a
shaded area shown in
Figure 26 titled
Minimum Wall
Clearances
* 12” (305mm) from top of grille opening.
** 6” from top of grille opening.
Side Wall Protection
Adjacent combustible side walls that are within mini-
mum dimensions shown in Figure 25 of the fireplace
opening must be protected with CFM Corporation Wall
Shield Model SP40 or a specifically built wall shield
described in Figure 20.
The special wall shield design described in Figure 20 is
an alternate method of adding protection to side walls
and can be used in place of the SP40 with the same
wall clearances specified for the SP40. Rt must =1.85
minimum.

16
Vermont Castings EWF36A
20005167
Examples of wall shield insulation:
1. Manville - CERAFORM 126, K=.27,
1/2 inches thick
2. EH2416, K = .458,
1 inch thick required.
Hearth Installation
A hearth extension is required to protect a combustible
floor in front of the fireplace. Refer to Figure 26 for mini-
mum dimensions and mounting detail.
NOTE: Hearth Extension must not cover the air
inlet opening of a fireplace.
The hearth extension described in Figure 26 must be a
durable noncombustible material with a minimum (total)
Rt value of 1.09; refer to Figure 24 for examples. The
overall height (above a combustible floor), depth and
width must be as indicated, with the extension centered
to the fireplace opening.
The top of insulation must be covered with a non-com-
bustible decorative covering or a piece of .018” mini-
mum sheet metal, to protect hearth extension material.
(Fig. 26)
Secure the hearth extension to the floor to prevent
shifting, using trim molding or other similar means at
three (3) outer edges. Seal crack between the fireplace
hearth and hearth extension with a noncombustible
material. (Figs. 25 and 26)
WARNING: Hearth extension must be installed in
accordance with Figure 25. Top of hearth extension
must be level with bottom of fireplace.
Alternate noncombustible materials may be used
providing the (total) thermal resistance (Rt value) of the
alternate material employed is greater than or equal to
R = 1.09 Thermal resistance (R) or thermal conductivity
(K), may be obtained from manufacturer of the material.
Factors are related by the formula K = 1/R. (Fig. 24)
T = given thickness
R = thermal resistance for a given thickness (T)
K = thermal conductivity
Noncombustible material with a lower R value may
be used, provided thickness of material is sufficiently
greater to maintain an equivalent (total) thermal resis-
tance (Rt).
Example of Determining Hearth Extension
Equivalents
To determine the thickness required for any new mate-
rial:
FP550
BR/BC - SEALING
DETAILS
9/29/97
Wall Covering 2 x 4 Header - Do not
notch at standoffs
Noncombus-
tible Decorative
Facing
Seal all cracks
between fireplace sur-
round (steel) and wall
materials with noncom-
bustible material.
Cast Front
Noncombustible
Decorative Cover-
ing
Safety Strips - Must be
overlapped 1/2” minimum
FP1202
Fig. 25 Sealing gaps.
NOTE: No
material
may cover
black cast
face.
COMMON MATERIALS AND FACTORS
MATERIAL K* RMINIMUM
THICKNESS
EH2416
Common Brick
0.916
5.0
2.18 1.0 in.**
0.10 5.46 in.**
(CFM Corporation)
R Value is for 1/2 inch.
* Units of K = BTU/SQ FT/HR/˚F/IN
** Thickness of Listed Material
FP533ADD
Addendum
6/1/99 djt
8/4/99 changed .2 to .1
one inch to 1/2 inch djt
FP533ADD
Fig. 24 Hearth extension material factors.
NEW K of new material (per inch) thickness
required = X of listed
thickness K of listed material (per inch) material
Example for Common Brick
T (new) = 5.0/0.458 x 0.50 in. = 5.46 in. (new required
thickness).

17
Vermont Castings EWF36A
20005167
FP1201
Fig. 26 Combustible side wall protection and hearth extension dimensions.
Minimum Wall Clearances
WITH
Noncombustible
Surround Facing
WITHOUT
Noncombustible
Surround Facing
Minimum Hearth Extension Dimensions
(for On-Site Construction)
G
HG
J
Seal cracks
between the
fireplace
and hearth
extension with
noncombustible
material
"Z" Safety strips
must overlap
" minimum
May install
noncombustible
decorative
covering
OR .018" min.
sheet metal
Fireplace
Opening
Combustible
Floor
9" Required
FP1201
EPA combustible min.
3/20/02 djt
Firebox
Opening
A - Min. clearance
to combustible
perpendicular wall
B - Min. clearance
to combustible
perpendicular wall when
using noncombustible wall shield*
Side
Wall Side
Wall
F**
C**
E
E
D
4" Brick
(Example material)
Combustible material permitted within shaded area.
* Noncombustible wall shield requires 1" EH2416
insulation (minimum R Value = 1.85) between decorative
noncombustible rigid covering and combustible wall.
Minimum height and width is 40" x 40".
** Dimension/degree of angle will vary depending on thickness
of noncombustible surround facing.
4"
NOTE: No material may
cover black cast face.
Hearth extension must be
flush with bottom of fireplace.
1" Min.
1" Min.
EH2416 or
Equal "R" Value
Shaded area starts
1/2" away from
edge of unit
A B C D E F G H J
EWF36A 24” 12” 17° 25° 12” 8” 8” 18” 57”
610 mm 305 mm 305 mm 203 mm 203 mm 457 mm 1448 mm

18
Vermont Castings EWF36A
20005167
Operation
Attach Handles
The fallaway handles are used to open and close the
front doors. Remove after each use so they will not get
hot. Keep in convenient location for each use. (Fig. 27)
Assemble the primary air control and damper handles
by passing the 3³⁄₈” screw through the ceramic shaft
and into the bright metal hub. Tighten carefully until
snug. Do not overtighten. Ceramic handle could crack.
(Fig. 28)
5167
EPA36
cover
3/02
FP1397
Fig. 27 Insert fallaway handles into door handle stubs.
Steel Handle
Fallaway Handle
EWF36A Controls
Three controls regulate the performance of the
EWF36A fireplace: A primary air control supplies oxy-
gen for the fire, the damper directs air flow within the
fireplace and a variable-speed fan control, or rheostat,
regulates the warm air flow into the room. (Fig. 29)
Primary Air Control
A single air control regulates the amount of heat the fire
will produce and how long it will burn.
FP1396
EWF handles
8/14/03 djt
FP1396
Fig. 28 Assemble primary air control and damper handles.
Screw
Ceramic Shaft
Metal Hub
The primary air control is located in the upper left
corner of the unit. (Fig. 27) It is the primary source of
air for starting, maintaining, and reviving the fire.
Generally, more air entering the fireplace makes the fire
burn hotter and faster, while less air prolongs the burn.
The air supply is open to the maximum when the control
lever is rotated clockwise, and closed when rotated
counterclockwise. To vary the burn rate, adjust the con-
trol to the desired position in between these extremes;
opening the primary air control makes the unit burn
hotter. Closing the control slows the unit down. You may
adjust to any position you desire.
The Damper
The damper directs air flow within the fireplace.
The damper is operated by moving the lever located
in the upper right corner of the unit. It has two posi-
tions: Open to start or revive the fire and closed, for
normal operation and to control burn rate. The damper
is open when the lever is fully rotated counterclockwise
and pulled out and closed when pushed in. When the
damper is in the open position, with the lever pulled out,
and rotated fully in the clockwise direction, the handle
can ‘telescope’ back without closing the damper or any
damper movement. There are no intermediate settings
for the damper.
NOTE: Full clockwise or counterclockwise movement of
the damper handle is approximately 50°.
NOTE: Always open the damper before opening the
doors. Close damper to set burn rate.
FP1204
EPA36
controls
3/20/02 djt
Primary Air Control
FP1203
Fig. 29 EWF36A controls.
Damper

19
Vermont Castings EWF36A
20005167
KT108b
BFC
Correct door position
8/23/00 djt
KT108b
Fig. 30 Correct door position during operation.
Correct Optional
Spark
Screen
Correct
The Fan
Heated air from the fireplace is forced into the room by
an internal fan. The control for the fan is in the right
corner of the unit.
“Off” is to the far left.
“High” is just to the right of “Off.”
“Low” is to the far right.
Variable adjustment of the fans is possible with any set-
ting between “high” and “low.”
For best results, coordinate fan speed with the setting
of the primary air control. For example, when the air
control lever is set at “low,” also set the fan at “low.”
With the air control set for maximum heat, set the fan at
“high.”
Glass Doors
The EWF36A is intended for use with the doors fully
closed or fully open only when optional spark screen
is installed. (Fig. 30) NOTE: When operated with the
doors open and spark screen in place, the damper
MUST be in the open position.
Burn Only High-Quality Wood
The EWF36A is designed to burn natural wood only; do
not burn fuels other than that for which it was designed.
You will enjoy the best results when burning wood that
has been adequately air-dried. Avoid burning “green”
wood that has not been properly seasoned.
The best hardwood fuels include oak, maple, beech,
ash, and hickory that has been split, stacked, and air-
dried outside under cover for at least one year.
For areas that do not have a supply of hardwood, com-
monly burned softwoods include tamarack, yellow pine,
white pine, Eastern red cedar, fir, and redwood. These
too should be properly dried. Your EWF36A will accept
wood up to 24” (610 mm). Longer wood pieces work
better than short ones.
Wood should be stored under cover to maintain dry-
ness, and should be dried at least six months for
optimum heating and fire-viewing performance. Even
for short-term storage, however, keep wood a safe
distance from the heater and keep it out of the areas
around the heater used for refueling and ash removal.
Use the Air Control Settings
that Work Best for You
No single air control setting will fit every situation. Each
installation will differ depending on the quality of the
fuel, the amount of heat desired, and how long you wish
the fire to burn.
The control setting also depends on your particular
installation’s “draft,” or the force that moves air from the
stove up through the chimney. Draft is affected by such
things as the length, type, and location of the chimney,
local geography, nearby obstructions, and other factors.
Too much draft may cause excessive temperatures
in the fireplace. On the other hand, too little draft can
cause backpuffing into the room and/or the “plugging” of
the chimney or combustor.
How do you know if your draft is excessively high or
low? Symptoms of too much draft include an uncontrol-
lable burn or a glowing-red part of the EWF36A front. A
sign of inadequate draft is smoke leaking into the room
through the stove or chimney connector joints, low heat,
and dirty glass.
In some newer homes that are well-insulated and
weather-tight, poor draft may result from insufficient air
in the house. In such instances, an open window near
the stove on the windward side of the house will provide
the fresh air needed.
Another option for getting more combustion air to the
stove is to duct air directly from the outside to the stove.
In fact, in some areas provisions for outside combustion
air are required in all new construction.
Your EWF36A is designed so that it is possible to
incorporate outside air for combustion. Directions for
installing the optional AK-MST outside air ducts are
included with the kits and beginning on Page 11 of this
instruction.
When first using the stove, keep track of the settings
of the air controls. You will quickly find that a specific
setting will give you a fixed amount of heat. It may take
a week or two to determine the amount of heat and the
length of burn you should expect from various settings.
Most installations do not require a large amount of
combustion air, especially if adequate draft is available.
Do not for any reason attempt to increase the firing
of your heater by altering the air control adjustment
range outlined in these directions.

20
Vermont Castings EWF36A
20005167
Starting and Maintaining a Wood Fire
Burn solid wood fuel only in the EWF36A, and burn
it directly on the grate. Do not elevate the fuel. Do
not burn coal or other fuels.
Minimize thermal stress by allowing the plates to adjust
gradually during an initial break-in fire by following
Steps 1-3 below.
WARNING: Operate your EWF36A only with the
doors fully closed. If the door is left partially open,
gas and flame may be drawn out of the fireplace
opening, creating risks of both fire and smoke.
1. Open the primary air control fully.
2. Open the damper.
3. Lay some crumpled newspapers on the bottom
grate. Place on the paper six or eight pieces of dry,
finely-split kindling. On the kindling lay two or three
larger sticks of split dry wood approximately 1-2”
(25-51 mm).
Do not use chemicals or fluids to start the fire. Do
not burn garbage or flammable fluids such as gaso-
line, naptha, or engine oil.
Also, never use gasoline-type lantern fuel, kerosene,
charcoal lighter fluid, or similar liquids to start or “fresh-
en up” a fire in this heater. Keep all such liquids well
away from the heater while it is in use.
4. Light the newspaper and close the door. Gradually
build up the fire by adding a few 3-5” (80-120 mm)
diameter splits.
If this is your initial break-in fire, let the fire burn brightly,
but not to excess. Control the fire’s intensity by adjust-
ing the air control lever. After an hour or so stop adding
wood so that the fire dies out gradually.
For ongoing operation after the initial break-in, continue
to add a few sticks at a time of a progressively larger
size. Continue until you have a live ember bed at least
2-3” (51-76 mm) deep. This may take an hour or longer.
CAUTION: THE EWF36A IS HOT WHILE IN OPERA-
TION! KEEP CHILDREN, CLOTHING, AND FURNI-
TURE AWAY. CONTACT MAY CAUSE SKIN BURNS.
NOTE: Some chimneys need to be “primed,” or
warmed up, before they will draw sufficiently to open
the damper. To correct this situation, roll up a couple
pieces of newspaper, place them on top of the kindling
and toward the back of the stove, light them, and close
the doors. This should heat the chimney enough to initi-
ate a draft.
Once the draft is established, open the front door and
light the rest of the fuel from the bottom. Do not light the
main bed of fuel until the chimney begins drawing, and
repeat the procedure as often as necessary if the initial
attempt is unsuccessful.
5. Once a good ember bed of at least 2-3” (51-76 mm)
has formed, let the fire burn hot for an additional ten
to fifteen minutes.
6. Close the damper and the primary air control to a
medium-low setting as described on Page 18. The
fire volume will diminish immediately, but the fire-
place will continue to heat up. Maintain control of
the fire using the primary air control, and remember:
reduce the setting for less heat, increase the set-
ting for more heat. Refer to the air control settings
information on Page 18 for recommended settings at
different burn rates.
DO NOT OVERFIRE THIS HEATER. Overfiring may
cause a house fire, or can result in permanent damage
to the stove. If an exterior part of the EWF36A glows,
you are overfiring.
Reloading and Reviving a Wood Fire
• Open the damper and set the air control on “High,”
and wait at least fifteen seconds for the draft to
increase. Open the door slowly.
• Check the ash level, and empty the ash pan if nec-
essary. Replace the pan.
• Add the fuel, smaller pieces first. If it is necessary
to use wood smaller than the 24” (610mm) optimum
size, be sure to fill the firebox as completely as pos-
sible by loading the wood pieces alternately on the
left and right. Split wood will fill the firebox more
completely and reduce the frequency of reloading.
If you have an ember bed of at least 2-3” (51-76 mm),
leave the thermostat set on “high” for 10-15 minutes. If
the ember bed is less than 2-3” (51-76 mm), you may
have to let it burn longer.
Finally, close the damper and adjust the air control and
fan speed for your desired heat level.
NOTE: If the charcoal bed is relatively thick and your
fuel is well-seasoned, it is possible to add fresh fuel
(smaller pieces first), close the door and damper, and
reset the air control within five minutes.
Special Tactics for Cold-Climate Heating
The EWF36A is capable of producing in excess of
100,000 Btu’s/hour and heating an area of up to 2,500
sq. ft. (558 sq. m) However, many factors affect heating
performance and can influence the extent to which the
EWF36A can heat a given area.
A well-insulated home, located in a moderate climate
and with the EWF36A Fireplace located centrally in
an open floor plan, will be easier to heat than a drafty
home in the far north in which the EWF36A is installed
on an exterior wall at the end of a long house.