Heartland 1903, 2603, 1902, 2602 User Manual 2
1260 E. VanDeinse, Greenville, MI 48838
Phone (800) 223-3900 Fax (616) 754-9690
The Oval and Sweetheart
cookstoves are listed t o
CS A St andard B3 66.2M
ULC Standard S-627 & UL
1482 by Warnock Hersey
Professional Services Ltd.
NOTE: Warnock Hersey NBR
is 219.
INSTALLATION
AND OPERATING
INSTRUCTIONS
SAVE THESE
INSTRUCTIONS
FOR FUTURE USE
Note: Please read these instructions
thoroughly before attempting to install
this unit.
Oval
With Towel Rack
#1902
Oval
With Reservoir
#1903
SAFETY NOTICE: IF THIS STOVE IS NOT PROPERLY
INSTALLED, A HOUSE FIRE MAY RESULT. FOR YOUR
SAFETY, FOLLOW THE INSTALLATION DIRECTIONS.
CONTACT LOCAL BUILDING OR FIRE OFFICIALS
AB OUT RESTRICTIONS AND IN STALLATION
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
OVERFIRING CAUTION:
will void warranty on this appliance.
See page 31 for details.
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.
SweetHeart
SweetHeart
With Towel Rack
#2602
© 2010 AGA Marvel
SweetHeart
With Reservoir
#2603
W O O D C O O K S T O V E S
ATTENTION INSTALLER: Leave this manual with appliance
Manual #1705 110512
1
— FOR YOUR SAFETY—
DO NOT STORE OR USE GASOLINE OR OTHER
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.
2
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 chimney 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 factory 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 specic 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 Overring 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
PLACE OF PURCHASE______________________________
DATE OF PURCHASE_______________________________
SERIAL NUMBER__________________________________
Phone (800) 223-3900
Fax (616)754-9690
MODEL NUMBER__________________________________
3
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
Using the Oven and Cooking
Surface .............................................
Stove Top Cooking .................................................... 22
Oven Cooking ............................................................ 23
Water Reservoir ......................................................... 24
22
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
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
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
4
— Welcome —
our Heartland Cookstove is a time proven design of
Y
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 give your family generations of warmth, delightful
meals and untold pleasures.
Take the opportunity to read this manual thoroughly to become
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 of the installation (especially the chimney connector
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 ofcials about restrictions and
installation inspection requirements in your area.
(“Makeshift” compromises in the installation may result
in hazardous conditions, including a house re.)
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
The ash pan contains the following parts:(Sweetheart and 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 teon tape)
tap trim washer
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.
5
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)
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) Tighten up the remaining nuts (7 places)
Back of stove
Do not remove these nuts
from the screws, nuts t
through holes in u body.
Only remove the first
level of nuts and washers
Remove 3 sheet
metal screws before
installing u body
Reinstall 3 sheet metal
screws after installing
u body
6
Cabinet Assembly to Stove Top
Tool Rack- fasten
to rear of cabinet
using screws and
nuts provided.
Remove screws and washers
from top back flange of top, 2
places on Sweetheart and 3
on Oval
Remove machine screws
from the top (2 each side).
Machine
Screw
Cabinet Bracket
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.
7
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
Figure 2
Bell Damper
2. Insert a piece of 6” (15 cm) diameter black smoke pipe
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.
Lift handle
#1361 lift handle installed
on cooking surface
(See page 14, “Stovepipe Chimney Connection
Requirements”)
lockwasher
Nut
Cooking surface
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.
8
Installation
Be sure to read the sections on clearances, oor protection,
and chimneys before actively starting the installation. Contact
local building or re ofcials 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 noncombustible heat shields.
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”
(Continued on page 10)
9
Oval Rough in and Dimension Diagrams
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 Coo kstove
(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 omb ust ib le Wa l l
24
(61.0)
C om bu st ib ie W a ll
11 13/16
(30.0)
20
(50)
13 1/4
(33.7)
20 1/4
(51.5)
These drawings are
for reference only,
showing approximate
dimensions for rough
in purposes. Make
sure that no oor or
ceiling supports will
be cut due to chimney
installation.
10
SweetHeart Rough in and Dimension Diagrams
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
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)
These drawings are for
reference only, showing
approximate dimensions
for rough in purposes.
Make sure that no oor
or ceiling supports will
be cut due to chimney
installation.
11
Chart of Clearances
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 8 66 61 5 31 132 61 121 Centimeters
10 3 26 24 2 12½ 52 24 48 Inches
Oval
25 8 66 91 5 44 132 61 121 Centimeters
10 3 26 36 2 17½ 52 24 48 Inches
*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
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.
12
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”)
Performance of your woodburning system depends more
on the chimney than on any other single component.
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.
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).
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).
36" (900 mm)
24" (600mm)
10'
(3 metres)
Illustration showing minimum heights required,
depending on the location of chimney
Figure 3
13
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 should point 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).
Optional Accessories
Accessories may be obtained from your dealer or call us
direct at 800-223-3900. Our ofce 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 packed with every Oval
and Sweetheart heat shield kit. Extra copies may be obtained
from your dealer or by contacting AGA Marvel.
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 temperatures reached by smoke and exhaust gases,
galvanized pipe may release toxic fumes.
11. Horizontal runs of chimney connector should 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.
Figure 4
Illustration of Oval with
heat shield kit
14
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 difcult 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.
Figure 5
Illustration of Oval with
fresh air kit
Fresh air kit
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 bafed 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.)
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.
Figure 6
A Sample Oval Water Jacket Installation
This is an illustration of an active or pumped
circulating hot water system.
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 its cool 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 packed with every Oval
and Sweetheart water jacket. Extra copies may be obtained
from your dealer or by contacting AGA Marvel.
15
Understanding Combustion
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.
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 high enough and
oxygen is present. When the smoke
burns, it makes the bright ames that
are characteristic of a wood re. If the
smoke does not burn, it will condense
in the chimney forming creosote or
exit the chimney as air pollution.
Figure 7
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.
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 efciency 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 efciency;
• it produces less creosote;
• it ignites faster and smokes less;
• valuable heat is lost in the re as it dries out wet wood.
16
Getting Acquainted
may be lifted to access the wood grate pull without having
to open the door.
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 chimney will give you a very comprehensive
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.
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)
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.
Wood grate pull
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”.
• keep a re extinguisher nearby and have a clearly
understood plan on how to extinguish a re.
Wood Grate Pull
Bell Damper
Oven Damper Slide
Figure 8
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
17
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. A little extra care and thoughtfulness during the breakin 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
Flu Gases
Oven Damper
Figure 9 - shows oven damper 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.
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.
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 backpufng.
Close the oven damper slowly (Fig. 9) to allow the oven
ue chamber to absorb the smoke and heat.
18
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.
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.
The stove must rebuild its thermal momentum before
closing the oven damper.
As you become more experienced you will gain knowledge
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.
You are now ready for summer cooking.
sweetheart summer grate stand
wood grate positions for oval stove
upper “summer position”
lower “standard position”
upper “summer position”
lower “standard position”
wood grate positions for Sweetheart stove
19
Coal Burning
C
O
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
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.
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 side out. Tighten screws just enough to hold the 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).
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 pufng.
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.
20
To Start a Coal Fire:
1. Use paper and dry wood kindling to start the re.
2. Add small, compact pieces of hardwood when the kindling
is burning hot. Keep the primary damper controls fully
open to establish a hot re quickly. The ash door also
may be opened during start-up to accelerate the initial
burn.
3. When a substantial bed of red embers is built up, start
adding coal – small amounts at a time. Keep the draft
control open.
4. Continue adding small amounts of coal until there is a
solid bed of burning coal. Do not add too much at one
time. Allow sufcient time between each small loading (at
least ve to ten minutes), so that each loading has time
to ignite thoroughly before the next load is put in.
When a substantial bed of burning coals has been
established, ll the stove to the highest possible level,
no higher than the bottom of the redoor – be careful not
to overload! A deep bed of coal will always burn more
satisfactorily than a shallow bed.
5. When most of the wood is burned and the coal is completely
ignited (usually ve to ten minutes or less after lling the
stove), the draft control should be turned down to the
proper operating level. (If the ash door has been opened,
it must be closed to prevent overring, which can severely
damage the stove.)
NOTE: When burning coal, the redoor damper must
be kept open. The secondary air is required to aid in
burning off coal gases. The coal damper is not required
when burning wood and should be kept closed when
burning wood.
Coal grates are not to be used in upper (summer)
position. Do NOT ll rebox with coal higher than the
bottom of the redoor opening.
Disposal of Ashes (wood and coal)
Do not remove the ash pan when the stove is hot. Carry
the ash pan with one hand on the handle in the upright
position and the other on the front handle to balance the pan.
Improper disposal of ashes is the most common cause of
wood stove related res.
Empty the ash pan before ashes build up over the top.
Use Caution:
• don’t carry hot ashes through the house;
• even though the stove may be cool, the
ashes in the pan may still be hot;
Recharging the Fire
If the re is burning hot and there is a deep bed of coals, add
coal a hand full at a time.
Allow enough time between each addition for the combustion
process to start. As the bank becomes larger, the amount of
coal added at a time can be increased.
If the coal bed is under 5” (12.7cm) before a recharge is
started, it may be necessary to add kindling wood to increase
the combustion level so that more coal can be added.
1. Coal never should be added unless there is a reasonably
hot re. The coal bed should be bright and vigorous.
2. If the re is burning hot and there is a deep bed of coals,
full loads of coal can be added at any time. However, if
there is not a deep bed of coals, it is best to add small
amounts of coal at rst.
• never place the ash pan on a combustible
oor;
• never leave the ashes near combustible
material or combustible liquids;
• always dispose of ashes in a closed metal
container with a tight tting lid—if an
unexpected gust of wind fan the ashes, a
re could result.
21
Using the Oven and Cooking Surface
Under Oven E
xhaust
Damper Closed
Stove top cooking
The cast iron top provides an excellent large cooking area
for griddling, frying, basting and simmering.
Some users report griddling directly on the cooking surface,
although this is not recommended, as it usually creates
quite a mess. A cast iron cooking vessel with a at bottom is
recommended. As you inspect your new oval, you may nd
the edges of your keyplate sitting slightly above the cooking
surface. This is caused by the stiff new gasket under the
keyplate. As the gasket compresses over time, the keyplate
will drop to a position even with the rest of the cooktop.
To allow for normal settling, we have purposely created a
slight upward warp at the middle of
your oval keyplate. As the keyplate
heats and cools it will eventually settle
to a at position. The time period for
settling will be different for each stove
depending on usage. Please allow a full
season of use as a minimum.
When getting used to cooking on the
stove top remember that the surface is
cast iron and like cast iron cookware,
once heated retains the heat for a long
time.
The temperatures established on both the cooking surface
and in the oven are determined by three primary things:
1. The amount of draft the chimney has. As the bell dampers
are opened more air gets in the rebox and is drawn
through the stove and chimney, resulting in a faster,
hotter re.
2. The position of the oven damper. With the oven damper
closed, the heat is channelled under the entire cooking
surface (heating it up) and around the oven (heating it
up). When the oven damper is open, the heat will be
routed directly up the chimney.
3. How much wood/coal is in the rebox and what stage of
the combustion process it is at.
Successful stove top and oven cooking
will not result from trying to re the stove
up immediately but by having a heated
stove and ‘banking’ the re to retain the
temperature required.
The left hand side of the cookstove
top will be the hottest as the re burns
directly beneath it. The surface will get
cooler the further you go to the right.
The oven damper can be used to help
control the heat on the cooking surface.
To have the entire cooking surface
warm, the damper will need to be in
the closed position. This funnels the heat under the entire
cooking surface, therefore heating it (see gure 10).
Figure 10
22
Oven Cooking
Learning how to most effectively control the oven temperature
takes some time and experience. As a general rule, the stove
should be at the charcoal stage of the combustion process
before the oven is ready for cooking.
6. Ideally your stove will perform best if it is left running
constantly, keeping the entire system warm. Depending
on your wood and chimney conditions it would typically
take three or four charges of cord wood to establish a
good base for oven cooking, meaning 1 1/2 to 2 hours
before cooking from a cold start.
Important Note: The oven door thermometer registers the
temperature at the door only. For accurate oven temperatures,
refer to this interior oven thermometer.
Ovens vary in temperature from top to bottom and side to
Rotate base for use as
a hanger.
side. The only accurate check on oven temperature is an oven
thermometer placed along side food being roasted or baked.
See page 29 if your door thermometer needs adjustment.
1. You will nd that once the stove has about 4” (10.16cm) of
red hot coals in the rebox, it will have reached ‘equilibrium’.
2. Equilibrium means that the entire stove and chimney
system is heated and running at a fairly constant
temperature.
3. At this point, you may load a new charge of wood following
the procedure for ‘reloading’. Allow the stove to regain its
momentum—igniting the new charge. Keep bell dampers
dampered down to allow a steady slow ame.
7. Always load a new charge of wood to a glowing hot coal
bed about 4” (10.16 cm) deep. Waiting too long to load
a new charge means that the dampers will have to be
opened, to get the new charge burning well. This results
in extreme temperature swings and will make cooking
difcult. Your objective is to maintain the coal bed and a
constant heat.
8. Occasional ‘tending’ or stirring may be required. Keeping
these principals in mind and with a little experience, you
will nd cooking to be easy and trouble-free.
9. Woodstove cooking methods are as diverse as their
owners—there is no right or wrong way, only, in time,
your way.
10. Remember by opening the oven damper there is less
resistance on the ue and a hotter faster re will result.
The cooking surface directly over the rebox will typically
get hotter in this conguration.
11. Always open the oven damper before opening any rebox
doors or lifting the key plate. Wait momentarily before
opening the doors to allow the smoke in the oven chamber
to be drawn up the chimney to avoid backpufng.
Maintain your stove properly. The benets in superior
performance and safety are well worth the time.
4. The oven temperature can be controlled by moving the
oven damper slide. In the closed position, the oven will
get warmer, and cooler when you open it.
5. Remember the effects of the changes in the damper
position are not instantaneous on the oven temperature.
23
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