Kozy World Heater Problems [9 Easy Solutions]

Kozy World Heater problems include ignition issues, pilot lights not staying lit, heater shutting off, burner backfiring, yellow flame during combustion,  whistling or clicking noise, unusual odor, powder forming inside the burner box, and more.

kozy world heater problems

Today, we will be discussing easy solutions to your common Kozy heater issues. To know more about them, stick with us throughout the guide.

Kozy World Heater Problems [9 Easy Solutions]

As you already know about the heater problems in brief, let’s proceed towards the solutions. 

1. Heater Keeps Shutting Off

Your heater keeps shutting off if the pilot light is clogged, not enough fresh air is reaching the heater, or the line is low in pressure, the heater will stop working.


  • Call your local gas line provider and fix your gas pressure.
  • Do not block the airway of the heater. Maintain sufficient airflow to avoid further damage.
  • Clear the pilot light if it has any clogs.

2. Heater Won’t Stay Lit

Your Kozy World heater won’t stay lit for several reasons. First of all, damaged or clogged orifices are the main culprit behind this issue. The diameter of the orifice can be another issue. Also, low inlet gas pressure can cause problems. 

On top of that, if you block the airway, it will also shut down the heater suddenly. To find the remedy, inspect the problem and walk through the solutions properly.


  • Inspect the burner orifice first. If it is clogged, you will have to clean it. Turn off the heater. Then, take a scrub with some cleaning solution. Scrub the orifice until the clog is clear.
  • The orifice diameter can be another issue. In such cases, you will have to find the right orifice for your heater.
  • If the inlet gas pressure is low, contact your local gas supplier. Ask them to fix the pressure for you. Do not block the airway. Maintain a good airflow for the Kozy World Heater. 

3. Heater Ignitor Not Working

The Kozy World Heater ignitor button is responsible for igniting the pilot light. However, if it is broken or disconnected, then your Kozy World heater ignitor can’t ignite. In another case, if the ignition cables are tampered with or loose, then it might be the cause behind it as well.

As for not sparking, it might be an issue with the gas supply or the control knob. Either way, here are the solutions to both problems.


  • Inspect the ignitor and the ignition cable. Connect the ignitor properly. Change the ignitor if necessary. Inspect the cable for any possible leak or burn. Change the cable if necessary.
  • First, make sure that you have the right supply of gas. Sometimes the gas control valve is not turned on. Turn it on to have a proper gas flow. Now, check the control knobs. Press and hold the control knob during ignition. If there is air inside the gas line, press and hold the control knob for some time. It will release the air.

4. Heater Pilot Light Won’t Stay Lit

You need to press and hold the control knob long enough to ignite the pilot lights. Otherwise, your Kozy World heater pilot light won’t stay lit. However, a damaged or misplaced thermocouple connection can be another reason for the problem.


  • Press and hold the control knob for at least 30 seconds. Also, make sure that the knob is pressed fully. 
  • Inspect the thermocouple connection properly. Tighten the connection by hand at first. When it is tightened properly, turn it ¼ times more. 

5. Burner Backfiring During Combustion

A defective orifice, damaged burner, or malfunctioning gas regulator can cause a backfire during combustion. It can be very dangerous. Find a remedy by following the said solutions ASAP.


  • Clear the clogged burner orifice. If it is damaged, then change the orifice. Contact customer service to get a new burner orifice. 
  • Normally the gas regulator doesn’t get damaged. However, if the regulator is damaged, then you will have to replace the regulator. Contact your local technician to replace the regulator for you.

6. Heater Making Whistling or Clicking Noise

Usually, clicking noise occurs because of the expansion of the metal components. You see, metal expands when it heats. So, when you turn on the heater, the metal components expand and make noises.

However, if you hear whistling noises, then it might be an issue. Either the gas way has air trapped in it. Follow the solution to find a fitting cure.


  • Turn on the burner and let the gas flow for some time. It will release the trapped air and the burner will stop whistling.

7. Unusual Odor From Heater

Whether the heater is burning the vaporizing substance or the gas is leaking, you will smell the usual odor. Follow the said solutions to find a fitting fix.


  • Remove all the vaporizing substances like paint, burnishes, and other materials to avoid a funny odor. The heater burns down these vapors, and you smell the odor.
  • Now, smelling gas is not a good thing. Maybe it’s the defective control valve or high gas pressure, you will have to fix it right away. Now, contact a certified technician to find the problem and fix that for you.

8. Yellow Flame During Combustion

Yellow flame can occur if your gas inlet pressure is too low. Also, it can happen if your heater is not feeding enough air. The defective gas regulator can also restrict the flow.


  • Maintain sufficient distance from the heater so that you are not blocking the airway.
  • Call your local gas provider to ensure proper gas pressure.
  • Call a trained technician to replace the damaged gas regulator to avoid unwanted accidents.

9. White Powder Forming Inside the Burner Box

The powder can form for several reasons. But, the main reason is vaporizing substances. Wax, paints, hairsprays, and furniture burnishes can vaporize and clot around the heater.


  • Remove all the vaporizing substances from the room to avoid such a problem. However, try not to use the heater if you have newly burnished or painted furniture and walls.

Note: Clean and maintain your heater always. It will keep your heater in good condition.


What is the heating radius of the Kozy World Heater?

The heating radius of a Kozy World Heater is around 25 sq. ft. It can heat a regular size room quite comfortably. 

Is Kozy Wall Heater Safe?

Ventless Wall heaters are safe. Kozy Wall heater comes with an ODS or Oxygen Depletion sensor that senses the Oxygen level of your room. It will shut itself down if the level goes near 18%.

How much propane does the Kozy Wall heater use?

A Kozy World Propane Heater uses a maximum of 30,000 BTU.

Final Thoughts

This ultimate guide to your Kozy World heater covers all the issues regarding your heater. With these solutions, you can now easily fix your Kozy World heater problems all by yourself. If you still face other issues, reach us and we’ll be happy to help you.

Till then, share your thoughts, suggestions, and heater problems in the comment section down below. Stay safe and stay warm!

About William

William is the founder of Fireplacehubs.com. He has real life practical skills in fixing smoker & heating appliance issues. He loves to share his knowledge & helps others in fixing their appliances & saving their money. William firmly believes that anyone can repair his or her unit with the correct guidance & knowledge. See more at about us.

9 thoughts on “Kozy World Heater Problems [9 Easy Solutions]”

  1. I have been using my KozyWorld heater for almost 7 years without a hitch. Last night, I depressed the ignitor switch and turned the knob to pilot. The flame lit as usual then it went out. Now it is as if the switch and the ignitor have both stopped working simultaneously. Are parts available for repair?

  2. My Kozy-World heater is putting out black soot that I am finding on our walls, ceilings and other items in our house. What is causing this to happen?

    • Hi Gray

      Generally, black soot comes out from the heater due to a bad fuel or air mixture which forms carbon from incomplete combustion. Consequently, you are facing the black soot issue.

      To solve the issue clean the pilot & burner assembly with compressed air. If it doesn’t work, low the gas pressure at the pressur regulator to the gas log.

      Hopefully, your problem will be solved.

      Wish you all the best.

      • Since I last contacted you about the soot problem, I’ve had the fireplace burners professionally cleaned and the logs reset by the same ventless heater repairman and I cleaned the entire house but there is still more black soot everywhere. One thing I saw in your response to my initial question about the soot problem was to “low the gas pressure at the pressure regulator”; did you mean to say “LOWER the pressure at the pressure regulator”? The repairman did not mention that the regulator pressure could be causing the problem. How can I adjust the pressure regulator myself? Thanks

  3. I can not locate the model number for my mom’s fireplace. Can you tell me where it would be located on the unit? Her remote isn’t working, is it possible to use a universal remote?

  4. My Kozy World propane heater model #kw8525 s/n 1522AQNO2908, pilot flame does not stay near the flame holder causing the pilot to frequently go out. The pilot flame is 1″ to 1 1/2 inches from the holder. This happens regardless of the amount of fuel in the tank. One other propane heater in this camp works just fine with the pilot flame where it should be. Help.

    • Hi Walter

      Check the thermocouple, maybe it is far from the flame. Consequently, the pilot goes out. Well, to fix the issue, move the thermocouple closer to the flame.

      In case, you get the thermocouple is worn out, you need to replace it.

      Hopefully, your heater issue will be solved.

      Best of luck!


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