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High-fire: 

 

 

The flame should be bright yellow with a 2/3 fire-box height to where the flame 

will begin to break up and terminate just a few inches under the firebrick baffle.  The base of 
the flame at the burner ring should still be blue, and the catalyst will be a dull red.  If the flame 
is too high and allowed to impinge on the firebrick baffle too much, the result will be a cooling 
of the flame tip, and incomplete combustion, thereby producing smoke and soot.  Adjust the 
high-fire adjustment screw to achieve proper flame size. 
 
 

*EACH ADJUSTMENT OF NO MORE THAN ONE-QUARTER TURN 

SHOULD BE ALLOWED TO STABILIZE FOR FIVE MINUTES BEFORE MAKING 
ANY FURTHER ADJUSTMENTS ON EITHER HIGH– OR LOW-FIRE. 
 

*MAKE SURE THE FLUE PRESSURE IS CORRECT BEFORE MAKING ANY 

CARBURETOR ADJUSTMENTS. 
 

 

The carburetor on your Oil Classic has a main float valve internally to regulate the oil 

level in the stove.  It also has a separate, second safety float that can trip off if the oil level 
becomes too high in the carburetor.  Should this occur, you can reset the safety lever by clicking 
it back down to start.  You may need to reset the lever several times before the level of oil in the 
carburetor returns to a normal level.  Your Oil Classic has been rigorously tested to both U.L. 
896 and U.L. 307A for both residential and mobile homes, and should the fire snuff out for any 
reason, the carburetor will not allow more than 3/4” of oil in the bottom of the burner. 
 

IT IS IMPERATIVE THAT THE STOVE IS BURNING PROPERLY AS 

EXPLAINED ABOVE.  A POOR DRAFT OR POORLY ADJUSTED STOVE COULD 
CAUSE THE STOVE TO SOOT AND BUILD UP GASES INSIDE THAT COULD 
CAUSE THE STOVE TO GO OUT AND THEN RE-IGNITE ON ITS OWN.  THESE 
FUEL RICH GASES CAN BE EXPLOSIVE.

 

 

Should the fire go out for any reason, 

NEVER ATTEMPT TO LIGHT A HOT STOVE!

  

Try to determine why the stove went out and then allow the stove time to cool for 30 minutes before 
re-starting following the lighting instructions in this manual.   If you have any questions about the 
operation of your Oil Classic please check the trouble-shooting section of this manual or call your 
dealer. 

 
 

 

DRAFT STABILIZER ADJUSTMENTS:

 

 

After removing the rear draft stabilizer access cover (the 7”x 7” square cover in the middle 

of the stove back), you will see that the draft stabilizer has a weighted adjustment screw that you 
will be able to adjust to weigh more or less on the stabilizer shutter to allow more or less air into the 
flue.  With a suitable manometer, probe into the flue, adjust the weighted screw to where the 
pressure reading falls within the satisfactory operating range shown on the chart on the following 
page.  If the flame or draft is too high (not enough air entering the draft stabilizer) the fire can 
flicker excessively and make a roaring noise.  It can also appear that the flame is lifting off the 
burner top, or the flame pulls away or separates from the burner.  If too much air is entering the 
draft stabilizer,  the flame will be weak and smoky, producing soot on the glass.  The flame will be 
taller and more yellow/orange in color.  This indicates a low negative pressure and inefficient draft.  
If a manometer is not available, set the stabilizer while on high burn to the point where the stabilizer 
shutter is just closed with little movement needed to push it open or closed.  When your Oil Classic 
is burning on low burn, the draft stabilizer should be closed, but should wind or any other condition 
attempt to increase the draft, the draft stabilizer should be able to flutter open, thereby adding air to 
the flue, slowing the draft to a normal draft pressure.  Setting pressure with a manometer is highly 
recommended.  Should the flue be subjected to prolonged high winds or the flue itself is of high 
efficiency, the draft stabilizer may not be able to supply enough air for an efficient burn.  If this 
condition exists, a second draft regulator in the pipe may be fitted to overcome the excessive draft. 

 

Please see chart on following page. 

Summary of Contents for OC-10

Page 1: ...ove it is recommended that the installation be done by a qualified installer familiar with fuel oil stoves preferably an NFI Certified National Fireplace Institute expert We recommend contacting local building or fire officials in your area regarding restrictions and installation inspection requirements Please read this entire manual before attempting installation or operation of this appliance Im...

Page 2: ...orner of the pedestal base should these adjustments be necessary Place a level on top of the pedestal base both directions and adjust until level This unit has been tested to U L 307A and is approved for installation and use in manufactured homes There are some special considerations when installing into a mobile or manufactured home For model OC 10 10 burner the flue system must consist of a 6 di...

Page 3: ...t will make the combustion impervious to house pressure problems Please note that these clearances are minimums It is a good idea to exceed these clearances unless space is limited Common sense must prevail Minimum Clearances to Combustibles Sides Back Flue Pipe Corner Top Standard 8 6 9 4 Alcove 8 6 9 4 54 Note Corner clearance applies only when the stove is installed in a room corner with the st...

Page 4: ... must be removed and the draft stabilizer adjusted Its purpose is to allow more or less air to travel into the flue to compensate for a change in the flue draft Adjustment of the draft stabilizer will be discussed in Section 4 SECTION 3 Fuel tank installation and fuel line connections OIL Your Kuma Oil Classic comes with a carburetor set for an average of a 2 35 cc viscosity rating You should be a...

Page 5: ...g carburetor adjustments and draft stabilizer adjustments PRE LIGHTING CHECKS The installation should be inspected to ensure that the work is complete and the workmanship is satisfactory No stove should be lit if any part of the installation does not comply with the relevant standards and regulations The oil tank should be examined to confirm there is a supply of the correct grade of oil that a fi...

Page 6: ...r should begin burning blue at flame base and yellow at flame tip At this point a pressure check should be made and the draft stabilizer adjusted to within the recommended pressure setting range see draft pressure chart on page 7 8 Run the stove for at least 30 minutes on low or medium to allow the whole stove and chimney to come up to operation temperature 9 Turn the control knob to setting 1 and...

Page 7: ...tes before re starting following the lighting instructions in this manual If you have any questions about the operation of your Oil Classic please check the trouble shooting section of this manual or call your dealer DRAFT STABILIZER ADJUSTMENTS After removing the rear draft stabilizer access cover the 7 x 7 square cover in the middle of the stove back you will see that the draft stabilizer has a ...

Page 8: ... stove interior and drip pan Lightly brush off catalyst and inspect for deterioration replace if necessary Check all gaskets rope seal around door window seal check for loose glass no need to remove access panel gaskets Check oil tank for damage or leaks and clean or replace main tank filter Check all lines and connections for leaks or deterioration A draft reading should be taken for low and high...

Page 9: ... near fuel inlet SECTION 6 Trouble shooting guide CONDITION 1 Oil present in burner with the carburetor in off position 2 No oil in burner bottom after carburetor is turned on 3 Flame smoky when lit 4 Flame smoky when burning low 5 Flame smoky when burning high 6 Flame goes out on low 7 Flame goes out in high winds 8 Burner goes out and will not re light 9 Flame is noisy buzzing or roaring or sepa...

Page 10: ...d draft stabilizer may need to be installed in the pipe as well to compensate A wind directional cap or vacuum cap may be helpful to prevent wind gusts and down drafts from affecting pressure 8 No oil in tank Valve in fuel supply line shut inadvertently Fuel supply blocked plugged filter frozen water Carburetor on off lever tripped 9 Stove door having been open for a while and then shut a roaring ...

Page 11: ...l line supplied with stove 2 years Warranty does not cover gold plated door surface normal maintenance items such as paint glass and gasket This warranty does not apply in cases of abuse mishandling unauthorized repair alterations failures or operating difficulties due to misuse accident misapplication improper installation improper maintenance or service Kuma Stoves reserves the right under this ...

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