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3-90-70744R11_05/13
SF 2600 - Oil Operation as Backup -
The SF 2600 offers a uni ue option to the homeowner The
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into a wood/coal furnace
The operation of the oil burner as a backup system is as
simple as setting a thermostat To use the oil portion of your
furnace as a backup proceed as follows
1 Set the wood/coal thermostat to the comfort le el you
desire
2 Set the oil thermostat to a le el 5 to 10 degrees but not
less than 3 degrees lower than the wood/coal ther mostat
That’s all there is to it The idea is that when the wood/coal
portion can no longer maintain the le el set on that thermostat
the oil portion will come on and maintain the temperature set
on the oil thermostat
SF 2600 - Oil Operation Only -
In the oil only mode simply
turn the wood/coal thermostat to its lowest setting and select
the comfort le el you desire on the oil thermostat The SF
2600 will now act as a standard oil burner and maintain your
chosen temperature OTE It is recommended that the
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Curing Paint
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smoke will be obser ed rising from the painted sur face of
the furnace It is ad isable to increase the amount of fresh
air in the room during this breaking-in period This may be
achie ed by opening doors win dows etc Don’t be alarmed
This is normal
Starting a Wood Fire -
Open the bottom door to increase
the draft Take about eight sheets of newspaper crumbled
into balls and place on top of the grates ext lay some
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and no larger than 3/4” diameter
and should be layered in
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slightly larger pieces (2” diameter) of wood on top of the
kindling Light the paper at the bottom ust inside the door
ow close loading door and allow kin dling and wood to
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and open the loading door an inch or two for a few seconds
before opening com pletely This method will allow the smoke
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well established and ready for some larger wood Add four
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and open bot tom door again Let burn for about 5 minutes
ow open loading door using the same method as before
always closing the bottom door before open ing the top door
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Harman furnaces may be loaded with wood as full as possible
for high output and long burn time Then close the door and
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opened to speed the process The ob ect is to get the wood
burning well enough so it will not go out when the automatic
draft shuts back to the idle setting OTE When the bottom
door is open the automatic draft cannot function to reduce
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could o erheat
WARNING: NEVER LEAVE THE BOTTOM DOOR OPEN
WHILE FURNACE IS UNATTENDED!
After the wood is burning well close the bottom door The
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will dictate the best setting ormally the two manual draft
controls
on the loading door are kept closed to burn wood
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se the same procedure as for wood
except do not go to large diameter wood se wood about 2”
in diameter maximum This si e will form ery hot wood coals
in less time Here again the bottom door may be opened to
speed the process When a substantial bed of red wood coals
are de eloped start adding a thin layer of coal Pea or nut
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add thin layers of coal until there is a solid bed of burning
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layer Layers can be added until the bed is approximately ten
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about one uarter turn it helps keep the gasses burned off
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Close the bottom door as soon as the desired coal
bed is made
Loading
- Coal should ne er be added unless there is a
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coals full loads of coal can be added at any time Howe er
if there is not a deep bed of coals it is best to add small
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Shaking
- Shaking should be done only when there is a well-
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degree of burning Shaking should be done whene er the
furnace is refueled Best results for shaking Harman grates
will occur when short choppy strokes are used rather than
long e en strokes
Operating Instructions
