
12
3-90-70744R11_05/13
SF 2600 - Oil Operation as Backup -
The SF 2600 offers a uniue option to the homeownerThe
DELOLW\WRKDYHDQHI¿FLHQWRLOEDFNXSKHDWVRXUFHEXLOWULJKW
into a wood/coal furnace
The operation of the oil burner as a backup system is as
simple as setting a thermostatTo use the oil portion of your
furnace as a backup proceed as follows
1Set the wood/coal thermostat to the comfort leel you
desire
2Set the oil thermostat to a leel 5 to 10 degrees but not
less than 3 degrees lower than the wood/coal thermostat
That’s all there is to itThe idea is that when the wood/coal
portion can no longer maintain the leel 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 modesimply
turn the wood/coal thermostat to its lowest setting and select
the comfort leel you desire on the oil thermostatThe SF
2600 will now act as a standard oil burner and maintain your
chosen temperatureOTEIt is recommended that the
ZRRGFRDO¿UHLQWKHORZHUSRUWLRQRIWKHIXUQDFHEHRXWRU
QHDUO\RXWEHIRUHJRLQJWR³RLORQO\´RSHUDWLRQ
Curing Paint 'XULQJWKH¿UVWIHZKRXUVRIEXUQLQJDEOXH
smoke will be obsered rising from the painted surface of
the furnaceIt is adisable to increase the amount of fresh
air in the room during this breaking-in periodThis may be
achieed by opening doorswindowsetcDon’t be alarmed
This is normal
Starting a Wood Fire - Open the bottom door to increase
the draftTake about eight sheets of newspapercrumbled
into balls and place on top of the gratesextlay some
¿QHNLQGOLQJRQWRSRIWKHSDSHU7KLVNLQGOLQJPXVWEHGU\
and no larger than 3/4” diameter
and should be layered in
DFULVVFURVVSDWWHUQWRDOORZJRRGDLUÀRZ7KHQOD\VRPH
slightly larger pieces (2” diameter) of wood on top of the
kindlingLight the paper at the bottom ust inside the door
ow close loading door and allow kindling and wood to
FDWFK¿UH$IWHUDERXW¿YHPLQXWHVFORVHWKHERWWRPGRRU
and open the loading door an inch or two for a few seconds
before opening completelyThis method will allow the smoke
WRFOHDUDZD\IURPWKHGRRURSHQLQJ1RZWKH¿UHVKRXOGEH
well established and ready for some larger woodAdd four
RU¿YHSLHFHVRI´WR´GLDPHWHUZRRG&ORVHORDGLQJGRRU
and open bottom door againLet burn for about 5 minutes
ow open loading door using the same method as before
always closing the bottom door before opening the top door
1RZORDGWKH¿UHER[ZLWKZRRGWRWKHGHVLUHGIXOOQHVV$OO
Harman furnaces may be loaded with wood as full as possible
for high output and long burn timeThen close the door and
DOORZDOOWKHZRRGWRFDWFK¿UH7KHERWWRPGRRUPD\DJDLQEH
opened to speed the processThe obect is to get the wood
burning well enough so it will not go out when the automatic
draft shuts back to the idle settingOTEWhen the bottom
door is openthe automatic draft cannot function to reduce
WKHDPRXQWRIDLUWRWKH¿UHER[)RUWKLVUHDVRQWKHIXUQDFH
could oerheat
WARNING: NEVER LEAVE THE BOTTOM DOOR OPEN
WHILE FURNACE IS UNATTENDED!
After the wood is burning wellclose the bottom doorThe
DXWRPDWLF GUDIW FRQWURO ZLOO QRZ UHJXODWH WKH ¿UH 7KH LGOH
FRQWURODV VKRZQ RQ )LJ RQ WKH ÀDSSHUGRRU PXVW EH
DGMXVWHGVRWKH¿UHGRHVQRWJRRXWRURYHUKHDW([SHULHQFH
will dictate the best settingormally the two manual draft
controls on the loading door are kept closed to burn wood
6WDUWLQJ$&RDO)LUHse the same procedure as for wood
except do not go to large diameter woodse wood about 2”
in diameter maximumThis sie will form ery hot wood coals
in less timeHere againthe bottom door may be opened to
speed the processWhen a substantial bed of red wood coals
are deelopedstart adding a thin layer of coalPea or nut
VL]HGFRDOLVEHWWHUIRUVWDUWLQJD¿UHWKDQVWRYHFRDO:KHQ
WKH¿UVWOD\HULVEXUQLQJZLWKVRPHEOXHÀDPHFRQWLQXHWR
add thin layers of coal until there is a solid bed of burning
FRDO/HWHDFKOD\HUEXUQDEOXHÀDPHEHIRUHDGGLQJDQRWKHU
layerLayers can be added until the bed is approximately ten
LQFKHVGHHS7KLVLVDERXWDWWKHWRSRIWKH¿UHEULFN0RVW
XVHUV¿QGWKDWLIWKH\NHHSWKHWZRPDQXDOGUDIWFRQWUROVRSHQ
about one uarter turnit helps keep the gasses burned off
127( Close the bottom door as soon as the desired coal
bed is made
Loading - Coal should neer be added unless there is a
UHDVRQDEO\KRW¿UH7KHFRDOEHGVKRXOGEHEULJKWDQGYLJ
RURXV,IWKH¿UHLVEXUQLQJKRWDQGWKHUHLVDGHHSEHGRI
coalsfull loads of coal can be added at any timeHoweer
if there is not a deep bed of coalsit is best to add small
DPRXQWVRIFRDODW¿UVW
Shaking - Shaking should be done only when there is a well-
HVWDEOLVKHG¿UH7KHIUHTXHQF\RIVKDNLQJZLOOGHSHQGRQWKH
degree of burningShaking should be done wheneer the
furnace is refueledBest results for shaking Harman grates
will occur when short choppy strokes are used rather than
long een strokes
Operating Instructions