Corona 23-dk heater burns fine when filled up but flames starts going very low a little pass the 1/2 line on fuel gauze. what causing that.

hi dear,

First of all make sure that the heater is filled with K-1 Kerosene. Other fuel, such as gasoline, home heating oil, etc. do not burn hot, causing the heater to burn out of control. NEVER USE GASOLINE or any other fuel described as flammable. If there is any question about the fuel in your heater it is best to drain it and replace the wick and start with fresh K-1 Kerosene. If you are sure of your kerosene and your heater is giving off sooty black smoke it is a sign that the fuel/air mix is off. Make sure your heater is not in a draft. Too much air can create a very high flame condition. Avoid placing the heater in drafty areas or under a ceiling fan. Make sure the burner chimney is seated correctly. If the burner chimney didn't seat into place correctly after lighting you may be getting a very high flame on one side. If it's a high orange flame all the way around try rolling the wick adjuster knob down within the adjustment range - the wick may just be raised too high. If these things do not fix the problem wait until the heater is cool and inspect the burner cylinder. If there are any holes plugged with soot it needs to be cleaned, or if it's dented or buckled it needs to be replaced. After you have checked the fuel and burner you should check to make sure the wick is installed at the correct height. Refer to the owner's manual for exact wick height. If the wick is installed correctly and there is no other obvious defect it is best to take the heater to a service center to determine the cause. Our Find a Retailer tool can be used to help find a servicing center.

Two things usually cause the problem you noted. An improperly installed wick or the tails of the wick are not all the way into the tank. Therefore, it won't absorb enough kerosene for it to continually burn

Check out those two things and one of the other should solve your problem.

Raize the wick up and trin off the burned section off Or replacethe wick.first take some of the kerosine place a clear glass ,should be as clear as water if not replace the fuel. Use only K-1.

I just use a match. Turn the setting dial to High. Open the little door in front. The one with glass in it. Light the match. Push the pedal down that you normally use to start it with the battery starter. Put the match into the heater and touch it to the wick. With just a regular match, I can reach in far enough to light the wick. When you have a complete ring of fire, lower the pedal slowly and close the door. It will smoke briefly and then burn. After 15 minutes lower the wick till the flame is smaller and whiter.

only if it's number 1 grade diesel

try bringing your wick up to the fully raised position and pinch and bend the wick toward the igniter until they line up right. I have two coronas one of which has a broken igniter due to wear and tear. If you open the little door,press down the start lever,and light the wick with a barbecue grill lighter,you can safely light the heater if lining up the wick fails.

try emptying your heater of fuel,and lighting it letting burn for several hours. This will burn all of the deposits off of the wick. Make sure your heater is outside when you do this. when done lower the wick,fill with fuel,and let the wick soak for fifteen minutes before lighting.If this doesn't work try brushing the top of the wick a light brush of some sort and light.If still no luck,change the wick.

Try opening the little door on the front and grabbing the metal spring like piece inside,moving it back and forth until it seats correctly.

well, somebody once told me that if you add a quart of oil to 5 gal of kero, it makes a good diesel substitute. So, in theory, I would add a little ethinal (corn gas) to the kero.

FOUND THE CORONA 23-DK OWNERS MANUAL!! http://www.managemyhome.com/mmh/lis_pdf/OWNM/L0711355.pdf