Naija LPG Blog: Repairs, Maintenance, Depot Prices and Gas Price Calculator Explained: Why Your Gas Cooker Flame Turns Yellow - Causes and How To Fix

Explained: Why Your Gas Cooker Flame Turns Yellow - Causes and How To Fix

Explained: Why Your Gas Cooker Flame Turns Yellow - Causes and How To Fix

When you look at flames from different gas appliances like furnaces, fireplaces, and cookers, you might notice they come in various colors. These colors can tell us a lot about how the gas is burning and if everything is working correctly.

First, let's talk about propane gas furnaces. The flame you see in these furnaces is usually blue. This blue color indicates that the propane is burning very efficiently and completely. The temperature of this blue flame can reach around 1,980°C. That's very hot!

Now, let's move on to gas fireplaces. Unlike propane furnaces, gas fireplaces often have flames that are yellow or sometimes even red. This is different from the blue flames of propane furnaces. The reason for these yellow or red flames is to make the fireplace look more like a natural wood fire. It's designed this way to give a cozy and realistic feel in your home. Gas fireplaces are also built to be safe indoors, making sure that any emissions are properly managed through a flue system.

Similar to gas fireplaces, propane fireplaces also tend to have yellow flames. This is because, like with gas fireplaces, the aim is to mimic the appearance of a natural wood fire. This helps create a warm and inviting atmosphere.

Why Gas Cooker Yellow Flame – Gas Stove Temperature?

Lastly, let's discuss gas cookers or stoves. If you see a yellow flame on your gas cooker, it might mean there's a problem with how the gas is burning. Gas cookers are supposed to have a blue flame when they're burning correctly. The temperature of a gas stove can vary, usually ranging from about 90°C to a maximum of 300°C. This is much lower than the very high temperature of nearly 2,000°C that the flame itself can reach.

The color of flames in gas appliances can give us important clues about how efficiently they are burning fuel. Whether it's a blue flame in a propane furnace, yellow or red flames in a gas fireplace, or the proper blue flame in a gas cooker, these colors helps us to know if our gas appliances are working safely and effectively.


1. Why is my gas cooker flame yellow?

- The yellow color usually indicates incomplete combustion of the gas. This can happen due to various reasons.

2. What causes incomplete combustion in gas cookers?

- Incomplete combustion can be caused by insufficient air supply, a dirty burner or cooker components, or a problem with the gas-to-air ratio.

3. Is a yellow flame on a gas cooker dangerous?

- It can be a sign of inefficient burning, which may produce more carbon monoxide (CO) and other harmful gases. It's important to address the issue promptly.

4. How can I fix a yellow flame on my gas cooker?

- You can start by cleaning the burner and allow proper ventilation around the cooker. If the problem persists, it's advisable to contact a professional technician.

5. Can a yellow flame affect cooking efficiency?

- Yes, a yellow flame may not provide sufficient heat and could affect the cooking process, leading to uneven cooking or longer cooking times.

6. Should I be concerned if my gas cooker flame turns yellow occasionally?

- Occasional yellow flames may not be a cause for immediate concern, but if it happens frequently or consistently, it's recommended to investigate and resolve the underlying issue.

7. How does a gas cooker air adjustment affect flame color?

- Adjusting the air-to-gas ratio can help achieve a blue flame, indicating efficient combustion. This adjustment is crucial for proper burner operation.

8. Could external factors cause my gas cooker flame to turn yellow?

- Yes, factors like altitude, temperature, and gas pressure variations can affect combustion efficiency and flame color. Adjustments may be needed in such cases.

9. What role does maintenance play in preventing yellow flames?

- Regular cleaning and maintenance of your gas cooker, including the burner and gas lines, can help prevent issues that lead to yellow flames.

10. Is it safe to use a gas cooker with a yellow flame?

- Using a gas cooker with a yellow flame for extended periods may pose risks due to incomplete combustion. It's advisable to address the cause promptly.

Certified Gaspreneur

We provide news, information on all LPG related services, including construction, prices and repairs. Our goal and mission is to make LPG gas available and accessible to every household in Nigeria.

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