SF-150
Installation and Operator’s Manual
SF-150
SF-250
KEEP THESE INSTRUCTIONS
“Built to a Standard, Not a Price.”
2003
CAUTION: Read Warnings and Safety Considerations/
Recommendations for safe installation & operation.
Thank you . . .
THANK YOU FOR PURCHASING A HARMAN STOVE AND FOR READING
THIS OWNER’S MANUAL. It is our desire to provide as much data as needed to allow
you to install and operate your Harman Stove in the safest manner possible.
There are a number of excellent sources on wood heating which you might like to
purchase for your home library. These include “The Woodburning Encyclopedia” by Jay
W. Shelton; “Wood Heat” by John Vivian; and “The Complete Book of Heating With
Wood” by Larry Gay. Local fire departments provide an excellent source of counsel for the
novice woodburning customer.
If you have any questions regarding your Harman Stove which were not covered in
this manual, contact your local dealer or factory direct.
Index
INTRODUCTION
READ ALL INFORMATION “PRIOR” TO PROCEEDING WITH INSTALLATIONS, AND CHECK
WITH YOUR LOCAL AUTHORITIES FOR PREVAILING FIRE ORDINANCES AND RECOMMEN-
DATIONS.
1. SAFETY CONSIDERATIONS - Warnings to owner/operator of possible dangers, fire hazards and
cautions.
1.1 Keep children away -- may cause serious burns.
1.2 Fuel/Firing Warnings
1.3 Curing Paint
1.4 Mobile Homes
2. ACCESSORIES
2.1 Heat Collector or Plenum
3. ASSEMBLY
4. CHIMNEY - Proper draft/venting
4.1 Types of Chimneys
4.2 Common Chimney Problems
4.3 What To Do When You Have A Problem
4.4 Chimney Details
5. CREOSOTE AND SOOT
5.1 General And Specific Creosote Maintenance “Warnings”
6. ELECTRICAL
6.1 Electrical Warnings
7. FUEL
7.1 Firewood and Coal Fuel Information Sheet
8. GRATES
8.1 Grate System and Controls
9. INSTALLATION INSTRUCTIONS
9.1 Unpacking and Inspection of Parts
9.2 Warnings
9.3 Locating the Stove
9.4 General Information
10. PREVENTIVE MAINTENANCE INSTRUCTIONS
10.1 Periodic and Normal Everyday
11. OPERATING INSTRUCTIONS
11.1 Starting a Wood Fire
11.2 Starting A Coal Fire
11.3 Loading
11.4 Increase Heat From A Low Fire
11.5 Shaking
11.6 Draft controls
11.7 Secondary Air
11.8 Ashes
11.9 Safety
12. WARRANTY
12.1 Terms - Warranty
13. OPTIONAL HOT WATER COIL
1.1 KEEP CHILDREN AWAY --
MAY CAUSE SERIOUS BURNS
CAUTION: ALL SURFACES OF
STOVE ARE HOT. DO NOT
TOUCH! KEEP CHILDREN AWAY.
SERIOUS BURNS WILL RESULT
IF TOUCHED. THIS IS A HEAT
PRODUCING APPLIANCE. SERI-
OUS BURNS MAY RESULT IF
THE STOVE IS TOUCHED DUR-
ING FIRING.
1.2 FUEL/FIRING WARNINGS
DANGER! FIRE HAZARD! DO
NOT USE CHEMICALS OR FLU-
IDS TO START OR “FRESHEN
UP” A FIRE. SEVERE BODY
BURNS OR A FIRE IN YOUR
HOME COULD RESULT. DO NOT
BURN GARBAGE, GASOLINE,
THINNERS, DRAIN OR ENGINE
OIL, KEROSENE, OR FUEL OIL,
ETC. AN EXPLOSION, A HOUSE
FIRE OR PERSONAL INJURY
COULD RESULT. KEEP ALL
SUCH LIQUIDS WELL AWAY
FROM THE STOVE WHILE IN
USE.
“NEVER” burn materials other than
coal or split and dried wood logs. A
chimney fire or heat exchanger fail-
ure could result. This includes large
amounts of corrugated boxes, wood
shavings, paper scraps, dried
Christmas trees, coke, garbage,
tires, or other burnable products.
When and if the chimney pipes or
connectors reach 500 degre e s
fahrenheit (maximum temperature),
the stove is being over-fired. We rec-
ommend the purchase of a Harman
Magnetic Te m p e r a t u re Gauge to
monitor the stove and stack temper-
atures relative to the amount of draft
the customer permits the stove to
operate.
It has been verified that creosote will
ignite at 650 degrees fahrenheit. It
is the owner’s responsibility to fol-
low these recommendations.
This stove consumes air when it is
burning. It is advisable that a win-
dow in the vicinity be opened slight-
ly while stove is burning if your
house is tightly sealed and insulated.
(Information contained in this man-
ual is manufacturer’s recommenda-
tions and if there is any difference
between our recommendations and
local code requirements, we suggest
following local code requirements.)
1.3 Curing Paint
During the first few hours of burn-
ing, a blue smoke will be observed
rising from the painted surface of
the stove. It is advisable to increase
the amount of fresh air in the room
during this breaking-in period. This
may be achieved by opening doors,
windows, etc. Don’t be alarmed,
this is normal.
1.4 Mobile Home
Harman Stoves are not approved or
recommended for mobile homes.
2.1 Heat Collector
Optional Heat Collector can be
attached to the top of the stove to
direct heat from the spiral chamber
and stove top into a duct. CAU-
TION: The duct rising off the heat
collector should be kept ten inches
away from combustible materials for
the first fifteen feet from the stove.
This includes floor joists, suspended
ceilings, etc. Clearances may be
reduced if fireproof material such as
asbestos board or sheet metal with
air space is used to protect com-
bustibles. The heat collector slides
on easily from the front of the unit.
(See diagram on following page.)
1. Safety Considerations
2. Accessories
3. Assembly
Fasten blower to rear of stove
by sliding blower into slots
provided.
Heat Collector Diagram
Firebrick Diagram
SF-150
SF-250
4. Chimney
4.1 Types of Chimneys
The chimney is one of the most
important, yet most neglected and
misunderstood portion of any solid
fuel burning installation. We do not
recommend that the stove be con-
nected to a chimney with other
heating devices.
THE STOVE MUST BE CON-
NECTED TO ITS OWN TILE-
LINED FLUE. A MINIMUM FLUE
SIZE OF 8" X 8" IS NECESSARY
FOR PROPER OPERATION AND
APPROVED FOR ALL FUELS.
UNDER NO CIRCUMSTA N C E S
SHOULD A MANUAL FLUE
DAMPER BE INSTALLED IN THE
SMOKE PIPE BETWEEN STOVE
AND CHIMNEY!
No damper, heat saver, or automat-
ic vent damper device should be
installed in or on the smoke pipe.
N O O T H E R A P P L I A N C E S
SHOULD BE VENTED TO THIS
FLUE!
CAUTION: THE CHIMNEY MUST
BE A CLASS “A” CHIMNEY IN
GOOD OPERATION CONDITION.
NOTE: THE USE OF ALUMINUM
TYPE “B” GAS VENT FOR SOLID
FUELS IS UNSAFE AND PROHIB-
ITED BY THE NATIONAL FIRE
PROTECTION ASSOCIAT I O N
CODE.
There are three types of class “A”
chimneys:
A. Masonry with tile liner to
include brick or stone. It must be
supported on grade level founda-
tion.
B. Insulated Class “A” manufac-
tured chimney, listed or certified by
a national test agency.
C. Triple Wall Metal Class “A”
chimney, listed or certified by a
national test agency.
If your masonry chimney has not
been used for some time, have it
inspected by a qualified person
(building inspector, fire department
personnel, etc.). If a listed or certi-
fied manufactured chimney is to be
used, make certain it is installed in
accordance with the manufacturer’s
instructions and all local and state
codes. See Figure No. 1 of
Manufactured Chimney Installations
and Figure No. 2 of masonry
Chimney (note roof clearance) in
accordance with NFPA 211.
4.2 Common Chimney Pro b l e m s
In order to have a proper operating
solid fuel heating system, the chim-
ney must be capable of providing
the draft required.
The minimum required draft is .06
inches W.C. (water column). This
must be measured using a draft
gauge.
If the chimney cannot supply this
constant draft, the unit will not
operate properly.
In some installations, a barometric
draft regulator may be used and
properly adjusted to compensate for
excessive draft.
IMPORTANT!
Whenever you measure the draft,
the stove must be operating and suf-
ficient time given for the chimney
and stove to warm up. This should
take a minimum of thirty minutes.
The draft reading is taken 18" up
from the center of the stove flue
outlet in the smoke pipe.
REASONS for insufficient draft
readings:
A. Leaky Chimney - Air leaking in
a r ound a loose fitting clean-out
door, flue pipes not tight at the
joints, improper plug openings or
defective masonry.
B. Chimney Improper Height -
Chimney does not extend through
the roof to a sufficient height to pro-
mote sufficient draft or causes a
down drafting condition to take
place. (See Figure No. 3)
C. Obstructions in the chimney.
Check prior to using by holding a
mirror in chimney clean-out door.
This will give a view of the chimney.
D. Trees or Other Topographical
Barriers - Impeding the chimneys
operation or causing a down draft
condition to exist. This can also be
caused by adjacent buildings or the
roof of the same structure where the
chimney is not high enough. (See
Figure No. 3)
Figure 2
Figure 1
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