Heartland Sweetheart 2603 User manual

1
WOODCOOKSTOVES
ATTENTION INSTALLER: Leave this manual with appliance
INSTALLATION
AND OPERATING
INSTRUCTIONS
SAVE THESE
INSTRUCTIONS
FOR FUTURE USE
Note: Please read these instructions
thoroughly before attempting to install
this unit.
SAFETY NOTICE: IFTHIS STOVE IS NOTPROPERLY
INSTALLED,AHOUSEFIRE MAY RESULT. FORYOUR
SAFETY,FOLLOWTHE INSTALLATIONDIRECTIONS.
CONTACT LOCAL BUILDING OR FIRE OFFICIALS
ABOUT RESTRICTIONS AND INSTALLATION
INSPECTION REQUIREMENTS IN YOUR AREA.
IMPORTANT: Check around oven chamber on a weekly
basis for soot and creosote accumulation. Clean the
chamber thoroughly from the top, side and bottom with
the rake (part #1425) provided. Burn the stove hot daily
to reduce creosote accumulation. Use only dry wood
aged for one year. Failure to do so could result in
The Oval and Sweetheart
cookstoves are listed to
CSA Standard B366.2M
ULC Standard S-627 & UL
1482 by Warnock Hersey
Professional Services Ltd.
NOTE: Warnock Hersey NBR
is 219.
SweetHeart
SweetHeart
With Towel Rack
#2602
SweetHeart
With Reservoir
#2603
Oval
With Towel Rack
#1902
Oval
With Reservoir
#1903
Manual #1705 110512
The temperature registered by the oven door
thermometer may not necessarily correspond with
the reading taken with the thermometer inside the
oven. For accurate oven temperatures, refer to the
interior oven thermometer.
OVERFIRING CAUTION:
willvoidwarrantyonthisappliance.
See page 31 for details.
© 2010 AGA Marvel
1260 E. VanDeinse, Greenville, MI 48838
Phone [phone] Fax [phone]

2
— FOR YOUR SAFETY—
DONOTSTOREORUSEGASOLINEOROTHER
FLAMMABLE VAPOURS OR LIQUIDS IN THE
VICINITY OF THIS STOVE.
Stove Location - If the range must be located
near a window, avoid using long curtains which
could blow over the stove top, causing a re
hazard.
Any openings in the wall behind the stove or
in the oor under the range must be sealed.
Do not set unopened glass or metal containers
in the oven, or in the warming cabinet, or on
the cooking surface.
Grease accumulation is the cause of many
cooking res. Clean the oven compartment
regularly.
Do not attempt to extinguish a grease re
with water. Cover grease res with a pot lid
or baking soda.
Avoid the use of aerosol containers near the
range.
Never place pans, cookie sheets or roasters
directly on the oven bottom but use the oven
rack in its lowest position.

3
PLACE OF PURCHASE______________________________
DATE OF PURCHASE_______________________________
SERIAL NUMBER__________________________________
MODEL NUMBER__________________________________
Oval & Sweetheart Models
CONSUMER WARRANTY
ENTIRE PRODUCT – LIMITED ONE YEAR WARRANTY
AGA Marvel warrants the replacement or repair of all parts of this Wood Cookstove which prove to be defective in
material or workmanship, with the exception of the painted or porcelain enamel nish or plated surfaces, for one year
from the date of original purchase. Such parts will be repaired or replaced at the option of Heartland without charge,
subject to the terms and conditions set out below.
The warranty period against defects in the painted or porcelain enamel nish, or plated surfaces, is 90 days from date
of original purchase. The warranty does not include normal wear of rebox parts or gaskets.
TERMS AND CONDITIONS
1 This warranty applies only for single family domestic use when the Wood Cookstove has been properly in-
stalled according to the instructions supplied by Heartland and is connected to an adequate and proper chim-
ney and chimney connections. Damage due to faulty installation, improper usage and care, abuse, accident,
re, ood, acts of God, commercial, business or rental use, and alteration, or the removal or defacing of the
serial plate, cancels all obligations of this warranty. Service during this warranty must be performed by a fac-
tory Authorized Service Person.
2 Warranty applies to product only in the country in which it was purchased.
3 Heartland is not liable for any claims or damages resulting from any failure of the Wood Cookstove or from
service delays beyond their reasonable control.
4 To obtain warranty service, the original purchaser must present the original Bill of Sale, Model and Serial
number. Components repaired or replaced are warranted through the remainder of the original warranty period
only.
5 The warranty does not cover expense involved in making this appliance readily accessible for servicing.
6 This warranty gives you specic legal rights. Additional warranty rights may be provided by law in some areas.
7 Adjustments such as calibrations, levelling, tightening of fasteners, or chimney and chimney connections
normally associated with original installation are the responsibility of the dealer or installer and not that of the
Company.
8 Overring of this appliance will void warranty.
9. If the product is installed outside the normal service area, any cost of transportation expenses (tolls, ferry trip
charges, or mileage expenses, etc.) involved in the repair of the product, or the replacement of a defective part,
shall be borne by the customer (owner).
TO ENSURE PROMPT WARRANTY SERVICE, SEND IN YOUR WARRANTY CARD WITHIN 10 DAYS OF PURCHASE.
If further help is needed concerning this warranty, contact:
Customer Service
AGA Marvel
1260 E. VanDeinse
Greenville MI 48838
Phone [phone]
Fax [phone]

4
Installation Instructions............................ 5
Unpacking.................................................................... 5
Assembly .................................................................... 6
Cabinet Installation...................................................... 7
Installation.......................................................... 9
Clearances .................................................................. 9
Rough In for Oval Diagram........................................ 10
Rough In for SweetHeart Diagram .............................11
Chart of Clearances................................................... 12
Clearance Reductions ............................................... 13
Floor Protection ......................................................... 13
Chimneys and Draft................................... 13
Recommended Chimney Clearances........................ 13
Chimney Connection Requirements.......................... 14
Optional Accessories...................... 14
Heat Shield Kit........................................................... 14
Fresh Air Kit............................................................... 15
Water Jacket.............................................................. 15
Fuel ................................................... 16
Woodburning ............................................................. 16
Understanding Combustion ........... 17
Getting Acquainted .................................................... 17
Starting the Stove...................................................... 17
Break In Fire.............................................................. 18
Your First Fire ............................................................ 18
Summer Burning........................................................ 19
Coal Burning.................................... 20
Sweetheart Coal Grate.............................................. 20
Oval Coal Grate......................................................... 20
Oval and Sweetheart Fire Door Damper ................... 20
Starting Up a Coal Fire.............................................. 20
Recharging the Fire................................................... 21
Disposal of Ashes (wood and coal) ........................... 21
Use Caution............................................................... 21
Using the Oven and Cooking
Surface ............................................. 22
Stove Top Cooking .................................................... 22
Oven Cooking............................................................ 23
Water Reservoir......................................................... 24
Trouble Shooting............................. 25
Chimneys and Draft................................................... 25
How Chimneys Work................................................. 25
Factors that Affect Draft............................................. 25
Checking an Existing Chimney.................................. 25
Safety Practices......................................................... 26
What To Do If You Have a Chimney Fire................ 26
Maintenance..................................... 27
Oven Flue Passage................................................... 27
Flue Boot Inspection.................................................. 28
Oven Damper ............................................................ 28
Chimney Maintenance............................................... 28
Cooking Surface........................................................ 28
Nickel Trim................................................................. 28
Porcelain.................................................................... 28
Door Gaskets............................................................. 29
Firebox....................................................................... 29
Oven Thermometer Adjustment................................. 29
Formula for Equivalent Hearth Extension.................. 29
Terms of Reference and
Function ........................................... 30
Over Firing-Caution!........................ 31
Oval Parts Diagram .........................33
SweetHeart Parts Diagram............. 34
Replacement Parts Diagram.......... 35
Cookstove Parts List....................... 36

5
Your Heartland Cookstove is a time proven design of North American heritage. Our cookstoves were rst
made in 1906 and many originals are still in use today.
With proper operation and maintenance, your Heartland
cookstove will giveyour family generations of warmth,delightful
meals and untold pleasures.
Take the opportunity to read this manual thoroughly tobecome
familiar with all the installation, operation and maintenance
procedures for your stove. You will nd it offers valuable insight
into how a cookstove functions.
Save These Instructions
Keep the manual available for future reference. The manual
is an important part of your stove. If your stove is sold, deliver
the manual to the new owner along with the stove.
The quality ofthe installation (especially the chimneyconnector
and chimney), and the quality of the fuel being burned will
affect the performance of your stove, but the most important
factor is the way you operate the stove. With the help of this
manual, you will learn how to effectively heat and cook with
your stove. Be sure to read it entirely, including the terms of
reference and function.
In addition, your own experience will help you to learn the
role that the chimney plays in stove performance. The Oval &
Sweetheart have been tested and are listed by Underwriters’
Laboratories of Canada and Underwriters’Laboratories in the
U.S. The test standards are ULC S-627 and UL 1482.
The Oval & Sweetheart are listed for burning wood or coal
(with the optional coal grate). Do not burn other fuels. The
Oval & Sweetheart are not listed for installation in mobile
homes. Do not install the stove in mobile homes.
Safety Notice: If your stove is not properly installed and
maintained, a house re may result. For your safety, follow
all installation, operation and maintenance directions.
Contact local building ofcials about restrictions and
installation inspection requirements in your area.
(“Makeshift” compromises in the installation may result
in hazardous conditions, including a house re.)
Spend some time becoming familiar with the various parts by
operating them before you burn your stove.
After a few weeks of operating the stove re-read this manual.
Many of the procedures will become clearer after you have
had some experience with the stove.
Installation Instructions
Preparing the installation site before moving the stove into it
will save you from having to move the stove more than once.
See page 9 for information on “Clearances” and “Floor
Protection” page 13.
Unpacking
The stove is packaged in two main boxes. The smaller box
contains the warming cabinet.The main stove body is strapped
to the skid. Smaller component parts are packaged as follows:
Flu Body - (Oval only)
Flu body for the oval is fastened to the skid and must be
assembled to the stove. Assembly instructions are on the
following pages.
In the rebox:(Sweetheart and Oval)
1 ash scraper
Theash pancontainsthe followingparts:(Sweetheartand Oval)
1 poker
1 tool rack
1 lid lifter
1 cooking surface lift handle w/screw and nut
3 bell damper handles w/rod
3 bell dampers
1 Heartland oven cleanout door
1 bag of hardware
1 interior oven thermometer
Reservoir models only:(Sweetheart and Oval)
1 package containing:
water tap (tap thread wrapped with teon tape)
tap trim washer
— Welcome —

6
Assembly
Oval / Sweetheart
Before removing the oval stove from the skid, the u body
must rst be attached to the stove back. Follow the instructions
below.
1) Unscrew the u body from the skid and set aside.
2) Unscrew 3 sheet metal screws (2 along the bottom of the
oven at the bottom and 1 along left side - see illustration)
3) Remove the rst level only of nuts and washers from the
screws extending out the back of the stove (7pcs)
4) Place u body on back of stove so that the nuts on the
screws t inside the holes in the ange on each side of the
u body.
5) While holding the u body in place, attach the u to the
stove by putting on a washer and nut on each screw, hand
tight only.
6) Install the sheet metal screws along the bottom and side
of the u body, and tighten up.(3 places)
7) Tighten up the remaining nuts (7 places)
Back of stove
Remove 3 sheet
metal screws before
installing u body
Do not remove these nuts
from the screws, nuts t
through holes in u body.
Only remove the first
level of nuts and washers
Reinstall 3 sheet metal
screws after installing
u body
Warning: The stove is very heavy. Since the legs may dig
into a soft oor, do not locate the stove, or even set it to rest,
on a surface that could be imprinted.
We recommend that 3 or 4 persons be available to assist
in the lifting of the stove, and that gloves should be worn to
protect hands from cuts.
1) First, remove the screws that are holding the u body to
the skid and remove the u body.
2) Next, unscrew the two lag bolts which are securing the
front and back of the rebox base. Lighten the stove
by removing the keyplate and lids.
3) Look under the oven and note that the stove must be
lifted up, over the wooden brace located there.
4) With 2 persons on the heavier, rebox side (left), and one
person on the other side, lift the stove up, off of the skid
and onto its new location.
5) If possible, have a fourth person remove the skid while
the others lift.

7
Remove machine screws
from the top (2 each side).
Remove screws and washers
from top back flange of top, 2
places on Sweetheart and 3
on Oval
Cabinet Bracket
Machine
Screw
Cabinet Assembly to Stove Top
Remember when working with the cabinet it is top heavy. Use your hand to support it during installation. Remove the cabinet
assembly from the top of the stove. Lift the cabinet assembly by the bracket area that is circled and set on the floor or a table top.
Unwrap the cabinet assembly.
Remove the washers and screws from the rear edge of the stove top. (2 places on sweetheart or 3 places on Oval. Also remove the
4 machine screws from the top of the stove top.
With a helper lift the cabinet assembly (by the circled bracket area and supporting the top of the cabinet) and place the cabinet into
position on the stove top (see diagram above). Line up the bracket holes with the 4 holes in the stove top while a helper supports
the cabinet.
Secure the cabinet to the stove top with the 4 machine screws and the 2 or 3 screws and washers. To prevent chipping do not
overtighten screws or use power tools.
Tool Rack- fasten
to rear of cabinet
using screws and
nuts provided.

8
Oval and SweetHeart:
1. Assemble the bell dampers (Fig. 2) and thread into the
three locations, one at the front in the ash pan door, and
2. Insert a piece of 6” (15 cm) diameter black smoke pipe
(See page 14, “Stovepipe Chimney Connection
Requirements”)
Once the cabinet has been assembled and installed, follow
these few remaining steps:
1. Insert the lift handle( #1361) through the bracket and bolt
it through the hole in the cooking surface with the screw
and locknut.
The handle should be able to pivot freely from this point.
Tighten the nut securely, so it can’t work loose under
normal use.
2. The tool holder (#1440) is used to hang the
lid lifter, poker and scraper. To mount the holder, locate
warming cabinet back. Fasten with the bolts supplied.
3. A pipe damper installation is optional depending on your
supply you with a damper.
assembly of the chimney.
a) Open the front cabinet door.
b) Mark the spot for drilling in the back of the pipe by pushing
the sharp end of the damper rod into the back wall of the
pipe before drilling.
c) Drill a 1/4” (6.35 mm) hole in the middle of the smoke pipe
through the centre of the hole in the back of the cabinet.
d) Follow the instructions that came with the damper and
install the damper inside the cabinet with the handle of
the damper also inside the cabinet.
e) Make sure the damper disc rotates freely inside the pipe.
Figure 2
Bell Damper
Nut
lockwasher
#1361 lift handle installed
on cooking surface
Cooking surface
Lift handle

9
Installation
Be sure to read the sections on clearances, oor protection,
andchimneys beforeactivelystarting theinstallation.Contact
local building or re ofcials about restrictions and
installation in your area.
Clearances
A woodburning stove radiates heat in all directions. Heat
directed toward living areas in front of the stove is usually
very welcome.
However, heat radiating in other directions will not be as
welcome if it results in overheating nearby walls, ceilings
and oors.
An important part of planning a safe installation is to be sure
that combustible material located near your stove does not
overheat.
Clearance is the distance between your stove and stovepipe
and nearby walls, ceilings, and oors.
If there is adequate clearance, then the nearby surfaces will
not overheat.
The clearance distance should be empty except for non-
combustible heat shields.
(Continued on page 10)
Air owing between the stove and stovepipe and nearby
surfaces carries away heat.
Do not ll the empty space with any insulating material.
Be aware that as wood is exposed to continuous heat it dries
out, eventually lowering the temperature at which it will start
on re.
Maintain the clearances outlined in this manual, particularly
with respect to nearby combustible surfaces.
Your Heartland cookstove has been tested for safe operation
providing that these guidelines are followed.
Clearances must be maintained to all
combustible material. These include
doors, trim, furniture, drapes, newspapers
and clothes.
An optional heat shield kit is available for our woodstoves
for reduced clearances. See page 14 on “Heat Shield Kit”

10
Oval Rough in and Dimension Diagrams
These drawings are
for reference only,
showingapproximate
dimensionsforrough
in purposes. Make
sure that no oor or
ceiling supports will
becutduetochimney
installation.
27 1/8 (69 cm)
8 5/8" (22 cm) with heat shield kit (from wall to center of pipe)
23" (59 cm) with out heat shield (from wall to center of pipe) 12 ½ " (32 cm) with
heat shield
27" (69 cm) with out
heat shield to the
back of the stove
top
Combustible Wall
Oval Cookstove
(Top View)
20 1/4"
(51.44 cm)
3 3/4
(9.5)
26 1/4
(66.6)
62
(157.5)
32
(81.3)
14 1/2
(36.83) 35 1/2
(90.2)
8
(20.3)
47 3/24 (120.7)
8
(20.3)
18
(45.7) 22 1/2
(57.15)
27 1/8
(69.0)
Note: Dimensions in brackets are metric (cm)
HearthHearth Hearth
8
(20.3)
C om bus t i b le W a ll
24
(61.0)
C om b u st ib ie W a ll
11 13/16
(30.0)
20
(50)
13 1/4
(33.7)
20 1/4
(51.5)

11
SweetHeart Rough in and Dimension Diagrams
These drawings are for
reference only, showing
approximatedimensions
for rough in purposes.
Make sure that no oor
or ceiling supports will
be cut due to chimney
installation.
22 1/2 (57.2)
9 1/2" (24 cm) with heat shield kit (from wall to center of pipe)
23" (59 cm) with out heat shield (from wall to center of pipe)
13" (33 cm) with
heat shield
27" (69 cm) with
out heat shield
to the back
of the stove top
Combustible Wall
(Top View)
18 1/4"
(46.4)
4
(10.0)
26.1/4
(66.5)
62
(157.5)
31 7/8
(81.0)
8
(20.3)
30
(76.0)
8
(20.3) 42 1/2
(123.1)
Hearth
24
(61.0)
Combustible Wall
18
(45.7)
21
(53.0)
Hearth
23 5/8
(60.0)
20
(51)
Combustible Wall
Note: dimensions in brackets are metric
8
(20.3)
18 1/4
(46.0)

12
*Note:A chimney approved to ULC standard S629 in Canada or UL 103HT in the U.S. must be used to connect the smokepipe at
the top of the cabinet to maintain the 2” (5.08cm) clearance to combustibles. The approved chimney must extend 1” (2.54cm) below
the heatshield. PLEASE NOTE: That these are factory recommended clearances only, and are subject to local, provincial or state
building and re codes. These clearances may change without notice
Chart of Clearances
When a heat shield is installed dimensions B, D, E and F are taken from
the heat shield.
Dimensions A, C, G, and H remain the same with or with-out a heat
shield.
Dimensions A and C are taken from the reservoir on reservoir models.
When two or more clearances to combustible walls contradict each other,
the clearance with the greater numerical value must be maintained.
Status Model A B C D E F G H J Measure
NO HEAT
SHIELD
SweetHeart 25 69 66 66 50 58 132 61 121 Centimeters
10 27 26 26 20 23 52 24 48 Inches
Oval
25 68 66 91 50 86 132 61 121 Centimeters
10 27 26 36 20 34 52 24 48 Inches
WITH HEAT
SHIELD
SweetHeart 25 866 61 531 132 61 121 Centimeters
10 326 24 212½ 52 24 48 Inches
Oval
25 866 91 544 132 61 121 Centimeters
10 326 36 217½ 52 24 48 Inches

13
Figure 3
Illustration showing minimum heights required,
depending on the location of chimney
The chimney ‘drives’ the system by producing the draft that
draws in combustion air and exhausts smoke and gases to
outdoors.
When installing a new woodburning system or upgrading an
existing one, give as much attention to the chimney as you
do to the appliance that it serves.
The Oval and Sweetheart can be installed in a masonry
chimney which is in compliance with the appropriate standard
or a prefabricated chimney approved to ULC Standard S629
in Canada and UL 103HT in the U.S.
Follow the chimney manufacturer’s directions for installation.
We recommend that prior to installing your stove into a
masonry chimney, you have the chimney inspected by a
be used without the installation of a liner.
The chimney and installation will have to be inspected by
your local building inspector.
Recommended Chimney Clearances
The chimney must:
•extend at least 14 ft. (4.27m) above the collar of the
stove;
•extend at least 3 ft. (92 cm) above the point where it
passes through the roof;
•be at least 2 ft. above anything within a 10 ft. (3.048m)
radius of the top of the pipe.
Good draft in a cold chimney should be between 0.01” and
0.15” “water column” (your dealer may be able to check
this for you).
24" (600mm)
10'
(3 metres)
36" (900 mm)
Clearance Reductions
There are many alternate decorative methods to reduce
clearances to combustible materials. See your dealer,
standards are being met with these alternatives. In Canada,
refer to the Installation Code for Solid Fuel Appliances
and Equipment. CAN3-B365-M84. In the U.S., refer to the
National Fire Protection Association Standard 211,
Floor Protection
Chimneys and Draft
The chimney is the most important element of successful
stove operation. (See also page 26 “Flue Pipes”)
Performanceofyour woodburningsystem dependsmore
on the chimney than on any other single component.
-
Pad must extend 21” (534mm) in front of the stove in
Canada and 18” (458mm) in front of stove in U.S.
Pad must extend 8” (203mm) to the sides and back of the
stove.
Pad must extend fully to the wall if using side and back
clearances less than these dimensions.
materials: 1/2” (13mm) thick minimum with thermal
btu/h/F/in).
To determine thickness of equivalent material required
use formula (“K” x 0.5) / 0.43 = thickness required (“K”
material).

14
Optional Accessories
Accessories may be obtained from your dealer or call us
direct at 800-223-3900. Our ofce hours are from 8:30 a.m.
to 5:00 p.m. est
Heat Shield Kit
A space saving heat shield kit enables you to install your
cookstove as close as 2” (51mm) to a combustible wall!
Installation is Easy
The heat shield kit is available for both Oval and Sweetheart
cookstoves and mounts directly on the rear of the stove. The
main section of the shield covers the rebox and oven of the
cookstove, while the upper section covers the u pipe to the
height of the warming cabinet.(See illustration, Fig. 4.)
An installation and operating manual is packedwith every Oval
and Sweetheart heat shield kit. Extra copies may be obtained
from your dealer or by contacting AGA Marvel.
Figure 4
Illustration of Oval with
heat shield kit
Stovepipe Chimney
Connection Requirements
1. The stovepipe chimney connector should be made of 24
gauge or thicker sheet metal and should be 6” in (15.24
cm) diameter.
2. The last section of the chimney connector starting from
the stove should be screwed to the ue collar of the stove.
Individual sections of the chimney connector must be
screwed together with at least three sheet metal screws.
The last section should be securely attached to the
chimney. Be sure there are no “weak links” in the system.
3. The crimped ends of pipe sections shouldpoint downward
toward the stove so that any soot or creosote that falls
from the inside of the pipe will be funnelled into a clean
out or fall into the stove.
4. The chimney connector should be at least the height of
the warming cabinet before a 90 degree turn is installed,
with no more than two 90 degree turns.
5. A horizontal run of stovepipe should be no longer than 4
ft (1.22m). A vertical run of stovepipe to a prefabricated
metal chimney should be no longer than 8 ft (2.44m).
6. Do not pass the stovepipe chimney connector through
a combustible wall if it can be avoided. If this cannot
be avoided, follow the recommended in CSA B365 in
Canada and NFPA 211 in the U.S., recommendation on
Wall Pass-Throughs.
7. Do not use single wall smokepipe as an outside chimney.
8. Never pass stovepipe chimney connector through a
combustible ceiling.
9. The whole chimney connector should be exposed and
accessible for inspection and cleaning.
10. Galvanized stovepipe should not be used. When exposed
to the temperaturesreached by smoke andexhaust gases,
galvanized pipe may release toxic fumes.
11. Horizontalruns of chimney connectorshould slope upward
1/4” (6.35 mm) per foot going from the stove toward the
chimney.
12. During a chimney re, the chimney connector may vibrate
violently. The connector must be securely attached to
the pipe and chimney, and individual sections must be
securely attached together.
13. This stove is not to be connected to an air distribution
duct.

15
Fresh Air Kit
A fresh air kit enables you to use outside air, instead of room
air to fuel the re. Using an outside source for combustion air
has its advantages. If your home is tight and well insulated,
then the re in the stove may be “starved” of combustible air,
it will be difcult maintaining a re, and you may have back
drafting problems.
During the heating season, cold air, (which is more dense than
warm air), will cause the re to burn a little hotter, resulting
in more BTU’s from your wood, and less creosote build-up.
Installation is Easy
Mounting holes and airways are all pre-punched on all new
Oval and Sweetheart cookstoves.(See gure 5)
Simply remove the cover plates (right side of rebox on the
Oval and, bottom of the rebox on Sweetheart). Now you
are ready for installation. A complete set of diagrams and
instructions are included with each fresh air kit.
Please note that some States require a fresh air source to be
installed with wood burning appliances. Please check your
local, and state, building codes.
Water Jacket
The average family spent about one quarter of their utility
bill to heat water last year. By installing the water jacket in
your cookstove, you can reduce or virtually eliminate your
hot water utility bill.
Installation is Easy
The water jacket can be installed in the stove in less than a
minute using only a slot screwdriver. The water jacket is a
hollow bafed chamber that ts in the rebox. Two pipes and
a pump installed from the water jacket to the electric or gas
water heater, circulate heated water from the stove to the
storage tank. (See illustration, Fig. 6.)
You can expect from 8 to 10 gallons (30.3 to 37.9L) or more
hot water per hour (about 10,000 BTUs) from your oval water
jacket, OR 6 to 8 gallons (22.7 to 30.3L) (about 8,000 BTUs)
from your Sweetheart water jacket.
Because cold water cools the water jacket in the rebox,
creosote will be attracted to itscool surface, like humidity being
attracted to a cold window. These deposits will quickly burn off
thus reducing creosote formation in the stove and chimney.
An installation and operating manual is packedwith every Oval
and Sweetheart water jacket. Extra copies may be obtained
from your dealer or by contacting AGA Marvel.
Figure 6
A Sample Oval Water Jacket Installation
This is an illustration of an active or pumped
circulating hot water system.
®
Figure 5
Illustration of Oval with
fresh air kit
Fresh air kit

16
Charcoal: As the re progresses and
most of the gases have vaporized,
charcoal remains. Charcoal is
almost 100% carbon and burns with
very little ame or smoke. Charcoal
is a good fuel that burns easily and
cleanly when enough oxygen is
present. Of the total energy content
of the wood you burn, about half is
in the form of smoke, and half is
charcoal.
Water: Up to half the weight of
freshly cut logs is water. After
proper seasoning only about 20%
of the weight is water. As the wood
is heated in the rebox, this water
boils off, consuming heat energy in
the wood, the more heat energy is
consumed. That is why wet wood
hisses and sizzles while dry wood
ignites and burns easily.
Break-in Fires for New Stoves
If this is your rst re, OR you have installed a replacement set of brick, read the procedure for break-in res.
Proper seasoning ensures longer stove life.
Fuel
Woodburning
The rewood you use will make an important contribution to successful operation. You will achieve the best performance
and overall efciency by burning rewood that has been split, stacked and air-dried undercover from rain for at least one
year. Burning improperly seasoned or “green” wood can be a frustrating experience leading to poor performance, smoky
res and a build-up of creosote. Do not burn saltwater driftwood refuse, rubber tires, etc. Use of improper fuels can cause a
re hazard and lead to a premature deterioration of the stove components, voiding the warranty. (See Fig. 7 Understanding
Combustion.)
Burn dry wood because:
• it gives up to 25% higher efciency;
• it produces less creosote;
• it ignites faster and smokes less;
• valuable heat is lost in the re as it dries out wet wood.
Figure 7
Understanding Combustion
Smoke (or ame): As the wood
heats up above the boiling point
of water, it starts to smoke. The
hydrocarbon gases and tars that
make up the smoke are combustible
if the temperature is highenough and
oxygen is present. When the smoke
burns, it makes the bright ames that
are characteristic of a wood re. If the
smoke does notburn, it will condense
in the chimney forming creosote or
exit the chimney as air pollution.

17
Getting Acquainted
The Sweetheart and Oval cookstove are time proven heating
and cooking appliances. Take your time to acquaint yourself
with the principles on which your new stove operates as a
heater and cooking stove.
Understanding the primary principles of the air intake
controls, the oven damper, the ame path for the re and the
relationship to the chimneywill give you a verycomprehensive
understanding of what you are trying to accomplish with the
stove.
Before starting the stove, lift the key plate handle and rest
the arm in the top hook of the cabinet bracket. Open both
the top loading and ash pan doors. The doors open by lifting
slightly over the hook and pulling towards you.Always use the
lid lifter to open doors and bell dampers and when adjusting
the oven damper.
In the Oval, looking into the rebox through the top you
see cast iron liners, these liners rest on an oval refractory
rebrick.
In the Sweetheart, looking into the rebox through the top
you will see rebrick liners on the left and right side of the
rebox.
At the bottom of the rebox is the wood grate, looking in through
the ash pan door, you will see the wood grate pull—slide it
back and forth and looking down into the rebox you will see
the slots open and close.
The stove is burned with the slots open which allows the
combustion air to enter underneath the re. As ash and
coals build up on the grate these slots ll and will require the
occasional “shaking”.
It is a good policy to shake the grate or stir the coals with the
poker before loading a new charge of wood.
You will notice that with the ash door closed the ash ap
may be lifted to access the wood grate pull without having
to open the door.
Burning skid wood or construction materials with nails is not
recommended as anything in the rebox that will not burn
has the potential to get caught in the grate.
The ash pan is directly below the grate.
Starting the Stove
Good safety practices:
Educate your family members:
• before burning the stove, have each family member read
this manual and be aware of safety practices;
• keep children, clothing and furniture away from the
stove;
• the stove is HOT while in operation – DO NOT TOUCH
the stove, contact may cause burns;
• open the redoor, ash pan door, woodgrate pull, bell
dampers and oven damper with the 1415 lid lifter
only—these surfaces get hot; (see gure 8)
Slots open and close
Wood grate pull
Figure 8
Oven Damper Slide
Wood Grate Pull
Bell Damper
• keep a re extinguisher nearby and have a clearly
understood plan on how to extinguish a re.

18
Break-In Fire
(Refer to page 16 gure 7)
The rebox of your stove is made of superior materials—cast
iron and rebrick lining.
Both materials could be broken by a sharp blow or thermal
shock.Alittle extra care and thoughtfulness during the break-
in period will help promote a long life for your stove.
The cast iron and rebrick will have picked up moisture during
shipping and storage.
During the break-in period it is important to let the cast iron
and rebrick slowly dry out and avoid thermal shock, caused
by strong hot res.
• Build a small kindling re (following the instructions below
for the rst re) and add small pieces of kindling. Let the
stove burn for approximately one hour on the rst ring.
• Let the stove cool keeping the doors closed.
• Repeat the process for a few days or until you have had
six break-in res. You may notice some smoke or “burnoff”
during your initial ring. This is normal and is caused by
the curing of the paint nish.
Your First Fire
It is advisable to read and understand this section thoroughly
before starting the re (Refer to page 16 gure 7)
1. Open the oven damper (see Fig. 8 and 9) and air intake
controls (bell dampers). On damp cold days, it may help
to open the ash door slightly until a good draw develops
in the chimney.
2. To kindle a re. Lift the key plate lift handle and rest it
in the top slot of the closet bracket. Crumple six to eight
single sheets of newspaper into loose balls and place
them on the wood grate. Cut 10-15 pieces of kindling into
strips approximately 1/2” by 1/2” by 10” long (1.27 cm by
1.27 cm by 25.4 cm).
Place the kindling on the newspaper. Place 2 or 3 more
pieces of crumpled newspaper on top of the kindling.
Ensure that the wood grate slides are open.
Lighting the ‘charge’ is of your personal preference. One
method is to roll a piece of newspaper into a torch, lighting
one end and using it to start the paper.
Light the paper at the bottom of the load and then light
the paper at the top, shut the key plate immediately. You
may nd it helps to hold the key plate open just slightly
for a few seconds to give some extra air and establish
the re.
3. To Fuel the Fire.After a couple of minutes lift the key plate
or open the front loading door slowly. When the kindling
is established add larger pieces, perhaps 2”x2”x10” (5
cm by 5 cm by 25.4 cm) long.
Continue this process until the re is established when
split logs can be added.
Dampering the stove. Tighten the bell dampers to
approximately 1/4” (6.35 mm) opening. This will slow
the re down. Wait momentarily and close the oven
damper.
The smoke and heat is now being routed around the oven.
Remember, by closing the oven damper resistance has
been put on the system.
If the stove/chimney is not yet heated enough or there
is too much volume of re going through, this additional
resistance will cause backpufng.
Close the oven damper slowly (Fig. 9) to allow the oven
ue chamber to absorb the smoke and heat.
Figure 9 - shows oven damper open
Oven Damper
Flu Gases

19
4. Reloading the stove—Stove tending time will be greatly
reduced if you reload your stove while the system is still
hot and there is plenty of hot embers to rekindle the re
quickly. Including some smaller pieces of wood in the new
fuel load will help the stove regain temperatures quickly.
When reloading, open the oven damper and wait
momentarily—if loading from the top—slowly lift the key
plate or if loading from the front, open the door slowly.
Load wood—smaller, split pieces rst.
Close the door or key plate.
Open the bell dampers slightly.
The stove must rebuild its thermal momentum before
closing the oven damper.
As you become moreexperienced you will gainknowledge
on what settings of bell dampers and oven dampers can
be used at the different stages of the woodburning cycle
(see Combustion Process, page 16 gure 7).
Summer Burning
Both Oval and Sweetheart stoves feature a utility which allows
you to use your stove during the summer months with less
heat radiating from the rebox.
Oval:
1. Slide the wood grate from the lower rebox position and
remove the wood grate slide.
2. Set the wood grate on top of the rebrick. You are now
ready for summer cooking.
lower “standard position”
upper “summer position”
upper “summer position”
lower “standard position”
sweetheart summer grate stand
wood grate positions for Sweetheart stove
Sweetheart:
To use the summer position in the SweetHeart you will need
to purchase the optional #4271 summer grate support. Call
your dealer to order, or call direct to AGA Marvel.
1. Remove the wood grate from the lower rebox position by
pulling the grate up, back end rst, and out of the rebox.
2. Remove the wood grate slide from the wood grate. Place
the “summer position wood grate stand” at the back of
the rebox on the rebox extension.
3. Place the re grate so the back of the re grate rests on
the stand, and the front rests on the top of the front brick.
You are now ready for summer cooking.
wood grate positions for oval stove

20
Coal Burning
Do not burn coal on the wood grate.An optional coal grate kit
is available for the Oval (#1500) and the SweetHeart (#4500)
to burn coal. An installation and operating manual is packed
with every Oval and Sweetheart Coal Kit. Extra copies may
be obtained from your dealer or by contacting AGA Marvel.
Below is a brief description of the coal kit installation
Sweetheart Coal Grate Installation
To install the optional coal grates, remove the lift handle, the
key plate and lids. Lift the wood grate out through the top of
the rebox and replace it with the coal grate. Remove small
front brick in rebox by unscrewing bolt & nut that holds brick
in place. (Please note that older models require front re brick
to be installed with the groove facing away from the rebox
and towards the front of the stove). Replace with large brick
in coal kit. Gently tap the coal grate down until it ts snugly
into the steel track. Replace the key plate, lift handle and lids.
Then proceed with redoor damper installation.
Oval Coal Grate Installation
To install the optional coal grate package, remove the wood
grate through the ash pan door and replace with the coal
grate. Remove the key plate over the rebox and slide the coal
liners #1470 in the front and #1475 in the back of the rebox.
Replace the key plate, lift handle and lids. Then proceed with
redoor damper installation.
Oval and Sweetheart Firedoor Damper
(Coal burning only, see illustration on next column)
The redoor damper comes with each coal kit and must be
installed. Remove the nickel redoor frame from the redoor.
Loosen the three screws that hold the cover plate over the
damper holes. Replace the cover plate with the coal damper,
lettered sideout.Tightenscrews justenough to holdthe damper
plate on but also allow it to slide freely back and forth. Lock
screws in position with a nut on each screw thread.
A wood “break in” re should be done before attempting
to burn coal (see page 16).
C
O
Illustration showing
Oval redoor
damper installation
Starting Up a Coal Fire
A chimney 6” (15.25 cm) in diameter is imperative for the
Coal Burning process. On chimney larger than 6” (15.25
cm) in diameter will cause poor ignition of the coal due to
inadequate draft.
It is possible to burn coal with a large diameter chimney, but
banking a new bed of coals will require a greater mix of wood
to create and maintain an adequate draft.
The minimum draft required to maintain an oven temperature
of 350 ºF (175⁰C) is around .04” (1.016 mm) on a water
column. For drafts under .04” (1.016 mm) on a water column,
closing the oven draft damper more than half way, will cause
back pufng.
During the recharge phase of a new bank, a draft of .08” (2.03
mm) should be maintained for at least 10-15 minutes or until
a substantial bed of red embers is built up.
We recommend burning anthracite coal, which is relatively
clean to handle, burns evenly with a low ame, has a low
sulphur content and produces relatively little smoke.
Use a “chess nut” or “nut” size of coal, which is 1 3/16 to 1
5/8 in (3 cm to 4.13 cm) diameter. However, other coal, such
as bituminous, can be burned, but is inferior to anthracite.