background image

12

One-eighth  to  1/4"  accumulation
on  interior  parts  is  normal.  The
most important area is between the
pipes  indicated  by  the  arrow  in
Figure 6. Under normal operation it
is not necessary to clean the cham-
b e r.  Excessive  accumulation  will
only  occur  when  wood  is  burned
very slowly for long periods of time.
If  this  is  the  case,  we  recommend
you clean the chamber and burn the
stove hotter. If the extra heat from
the hotter fire is too much for your
home,  switching  to  coal,  in  the
warmer months may be the answer.
We  recommend  you  check  your
interior spiral chamber once a year.

11.1 Starting a Wood Fire

Take about eight sheets of newspa-
per, crumble up into balls and place
on top of grates on dual fuel models
and  on  the  firebrick  in  the  wood
models. Next, lay some fine kindling
on  top  of  the  paper.  This  kindling
must be dry and no larger than 3/4"
diameter and should be layered in a
criss-cross pattern to allow good air
flow. Then, lay some slightly larger
pieces (2" diameter) of wood on top
of the kindling. Open draft controls
fully and light the paper at the bot-
tom just inside the door. Now, close
loading door (also ash removal door
on dual-fuel models) and allow kin-
dling and wood to catch fire. After
about  five  minutes,  open  loading
door an inch or two for a few sec-
onds  before  opening  completely.
This method will allow the smoke to
clear away from the door opening.
Now  the  fire  should  be  well-estab-
lished  and  ready  for  some  larger
wood. Add four or five pieces of 3"
to  4"  diameter  wood.  Close  door
and let burn for about 5-10 minutes.
Now  open  loading  door  using  the
same  method  as  before  and  load
stove  with wood  to the  desired full-
ness. All Harman wood and dual fuel
stoves may be loaded with wood as 

full as possible for high output  and
long burn time. Then close the door
and allow all the wood to catch fire .
After  all  the  wood  is  burning  well,
you may reduce the air entering the
f i rebox by turning the draft contro l s
c l o c k w i s e .

WA R N I N G !

DO  NOT  CLOSE

BOTH  DRAFT  CONTROLS  ON
LOADING DOOR AT ONCE AND
THEN  OPEN  THE  DOOR,  AS
THIS  WILL  CAUSE  AN  EXPLO-
SION  OF  THE  UNBURNED
GASES IN THE FIREBOX!

Close  and  open  the  draft  controls
one at a time to the desired setting.
This  setting  should  normally  be
between  one  and  two  turns.  Less
than  one  turn  will  cause  excessive
creosote buildup and over two turns
may cause excessive heat.

NOTE:  EACH  STEP  IN  THIS
PROCESS  WILL  TAKE  LONGER
IF  YOUR  WOOD  IS  DAMP  OR
WET  AND  WILL  INCREASE
SMOKE. Normally the bottom draft
control is kept closed to burn wood.

11.2 Starting a Coal Fire

Start  a  fire  using  the  same  proce-
dure as for wood.

Add small, compact pieces of hard-
wood when the kindling is burning
hot.  Keep  the  draft  controls  fully
open to establish a hot fire quickly.
The  ash  door  also  may  be  opened
during start-up to accelerate the ini-
tial burn.

When a substantial bed of red wood
coals are built up, start adding coal
(pea or nut is preferred to stove coal
for starting) small amounts at a time.
Keep the draft control open.

Continue  adding  small  amounts  of
coal  until  there  is  a  solid  bed  of
burning coal. Do not add too much
at  one  time.  Allow  sufficient  time
between each small loading (at least
5-10 minutes), so that each loading
has time to ignite thoroughly before
the next load is put in. When a sub-
stantial  bed  of  burning  coals  has
been established, fill the stove to the
top of the firebrick. A deep bed of
coal always will burn more satisfac-
torily than a shallow bed.

When  most  of  the  wood  is  burned
and  the  coal  is  completely  ignited
(usually  5-10  minutes  or  less  after
filling  the  stove),  the  draft  control
should be turned down to the prop-
er  operating  level.  (If  the  ash  door
has been opened, it must be closed
to  prevent  overfiring,  which  can
cause  dangerously  high  tempera-
tures.)

11.3 Loading

Coal should never be added unless
there  is  a  reasonable  hot  fire.  The
coal bed should be bright and vigor-
ous.

If the fire 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 first.

11.4 Increasing Heat From a 

Low Fire

Every effort should be made not to
let a coal fire burn too long so that

Figure 6

11. Operating Instructions 

Summary of Contents for SF-150 SF-250

Page 1: ...stallation 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 operat...

Page 2: ...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 Wi...

Page 3: ...at 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 I...

Page 4: ...enheit 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 bu...

Page 5: ...4 3 Assembly Fasten blower to rear of stove by sliding blower into slots provided Heat Collector Diagram Firebrick Diagram SF 150 SF 250...

Page 6: ...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 Problems In order...

Page 7: ...r to the room Your home may be so airtight that not enough oxygen is reaching the fire 6 REMEMBER open the draft controls and crack the fire door slightly before recharging the fire chamber or checkin...

Page 8: ...s on the interior sur face of the chimney and stove pipe subsequently reducing draft A SERIOUS FIRE MAY BE IGNITED IF A SUFFICIENT CREOSOTE BUILDUP IS PERMITTED Creosote condenses from the flue gases...

Page 9: ...h of its heat value in boiling off this moisture It is difficult to ignite and is sometimes hard to keep burn ing But its major evil is creosote as will be discussed in the next section Seasoning is e...

Page 10: ...Grates are removable without tools B Burns Three sizes of Anthracite You can burn pea nut or stove coal with these stoves C Exterior Shaker Lever For greater safety from getting burned and greater co...

Page 11: ...Make final adjustments to bring the stove into a level position by adjusting feet as required Most Harman stoves are equipped with adjustable feet which are adjusted simply by turning them They are 4...

Page 12: ...eep a professional chimney sweep in mind if you have access to one Steel brushes are the safest for cleaning metal surfaces Salt solu tions and some chemicals may dam age metal surfaces Do not overfir...

Page 13: ...T ONCE AND THEN OPEN THE DOOR AS THIS WILL CAUSE AN EXPLO SION OF THE UNBURNED GASES IN THE FIREBOX Close and open the draft controls one at a time to the desired setting This setting should normally...

Page 14: ...ature to stabilize 11 7 Secondary Air The two draft controls on the top door are used to allow secondary air to pass over the fire when burning coal This adds oxygen to the unburned gases primarily me...

Page 15: ...ode stainless and masonry chimneys and even terra cotta chimney liners and brick in nearby buildings Coal with high sul fur content will destroy chimneys especially fast if soot sits in the flue for e...

Page 16: ...circulate automatically through the system a Shut off the hot water heater and the old water supply to it Drain the tank completely b Remove the temp press relief valve and discard Install a short 3 4...

Page 17: ...e the drain valve at the bottom of the tank Install a short 3 4 nipple and tee and re install the drain valve to the tee 4 d Install a circulating pump 6 as shown Run 3 4 copper tubing from the circul...

Page 18: ...17...

Page 19: ...VE PARTS REPAIR AND OR REPLACEMENT AT HARMAN STOVE COMPANY S OPTION AND EXCLUDES ANY INCIDENTAL AND CONSEQUENTIAL DAMAGES CONNECTED THEREWITH WARRANTY EXCLUSIONS Failure due but not limited to fire li...

Reviews: