Question about Corona 23-DK Compact Heater

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High flame on 23-DK

When I set my wick on low, within mins the flame is very high and a lot of black smoke appears. ?

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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.

Posted on Nov 02, 2008

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Black smoke coming kerosene


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.

Jan 04, 2014 | Corona 23-DK Compact Heater

1 Answer

Well here goes. I replaced the wick, I let it soak for atleast 48 hours, once the heater is burning i bumped into it and the auto shut off fliped off and it kept on burning but only flickering. The dial...


Not sure you did anything wrong. Seems everything worked as it should when you accidentially bumped it. I think the flickering flames would have extinguished themselves in a short time.

But, to be sure, remove and reinstall the wick, making sure you don't install it to high on the wick holder. Please use rubber gloves when you do this, since the wick will be soaked in kerosene.

Hope this helps solve your problem.

Feb 20, 2011 | Corona 23-DK Compact Heater

1 Answer

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.


From your description, it sounds like the wick may need replacing or the tails of the wick are not hanging all the way down into the tank. And, therefore they are drying out. Thus, your flame gets low and eventually goes out. The only way to know is take the heater apart. If you're not comfortable doing that check with your local hardware stores, like True Value or Ace. many of these store do repairs on kerosene heaters and replace wicks. It can be a messy job, but someone has to do it.

Jan 21, 2011 | Corona 23-DK Compact Heater

1 Answer

Is it possible to manually ignite a corona 22dk kerosene heater safely with a butane lighter? the battery operated igniter is not working with new batteries installed.


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.

Sep 13, 2010 | Corona 23-DK Compact Heater

1 Answer

I have a 23-dk corona kerosene heater. it was smoking so i replaced the wick. after replacing the wick it still smokes heavy. how do i fix the problem.


Check all airvents into conbustion chamber. Make shure they are all clear of blockage. The heater needs air to burn fule properly. Check wick adjustment it may have to much wick.

Sep 03, 2010 | Corona 23-DK Compact Heater

1 Answer

Changed wick in corona 23dk , now has very high flame and smokes like crazy.


the wick is round in this heater and may have to be cut for height. should be about an eigth of an inch below the top

Jan 11, 2010 | Corona 23-DK Compact Heater

1 Answer

My Dyna GLo kerosene heater has excessive smoke and yellow flame


I'm wondering the same
Should a duraheat, etc., cylindrical convetion heater's flame be bright yellow, blue , or what? With the old wick the flame was blue, with the catalytic converter glowing red hot. Now with the new wick, I can't even see the CC, because the flame burns a bright yellow. Also I have to really fine tune it now. A wee bit too high, I get smoke and soot. A wee bit too low, same...smoke and possibly flame out.

Feb 24, 2009 | Heaters

1 Answer

Only half of the wicks burns/ flame varies in height/ smokes !


Sounds like you have a wick that has burnt unevenly in the past and now there is not a good setting for an optimum burn. Either the wick needs to be trimmed even or you need a new wick.

Nov 14, 2008 | Heaters

1 Answer

Corona DK 23 kerosene heater won't start


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.

Oct 09, 2008 | Corona 23-DK Compact Heater

1 Answer

Burns unevenly and smokes


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.

Oct 01, 2008 | Corona 23-DK Compact Heater

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