Why is there an orange flame on my gas stove?

Key takeaways.

• An orange flame on your gas stove is a sign of incomplete combustion. This is usually due to an improper mixture of fuel and oxygen.
• An orange flame itself may not always be dangerous. However, it can indicate issues that — if left unaddressed — may lead to safety concerns.
• You can fix an orange flame on your gas stove by ensuring proper airflow, cleaning the burners, or adjusting the gas-to-air ratio.
• In some cases, hiring a professional appliance repair service may be necessary.

What color should the flames be on gas stoves?

Before we dive into the mystery of the orange flames, let's establish what the flames on your gas stove should ideally look like. 

If you're using natural gas, the flames should be predominantly blue. This vivid blue color signifies that the gas is burning efficiently, with the correct air-to-fuel ratio. In other words, there's a correct amount of oxygen and fuel.

On the other hand, when using liquid propane (LP) gas, it's common to observe some slight orange or yellow tipping in the flame.

What causes orange flames on gas stoves?

An orange flame on a gas stove indicates incomplete combustion. There are several factors that can contribute to this issue, including the following:

• Airflow problems. Gas stoves require a precise mixture of fuel (natural gas or propane) and oxygen to burn efficiently. When there's insufficient airflow (perhaps due to clogged burners or blocked gas ports), the combustion process is compromised, resulting in an orange flame.
• Burner contamination. Over time, burners can accumulate food particles, dirt, grease, and debris. This buildup in the burner orifices can disrupt the proper distribution of gas and air. This results in incomplete combustion and, consequently, orange flames.
• Gas pressure issues. Fluctuations in gas pressure can affect the gas-to-air ratio, causing the flames to turn orange. This can occur due to issues within the gas supply system or even a problem with the gas regulator.
• Dirty or improper orifice. Orifices control the flow of gas to the burners. If they become dirty or are the wrong size, it can lead to an improper mixture of gas and air, causing the flames to turn orange.
• Ventilation problems: Inadequate ventilation in your kitchen can also impact the combustion process. If your kitchen lacks proper ventilation, it can affect the amount of air available for combustion, resulting in orange flames.

Is an orange flame on a gas stove dangerous?

An orange flame itself is not necessarily dangerous. However, it's a critical warning sign that some component of your gas stove isn't working properly. If you ignore this issue, there could be safety concerns — including dangerous health hazards.

Incomplete combustion can produce carbon monoxide, which is a colorless and odorless gas. Carbon monoxide poisoning is a serious problem. It can cause symptoms like headaches, dizziness, and nausea. Contact your local authorities if you believe your home contains unsafe levels of carbon monoxide.

If you notice an orange flame, take steps to fix it ASAP.

Related: 5 areas you should clean to prevent a house fire.

How to fix orange flames on gas stoves.

Now, let's explore how to rectify this issue and ensure your gas stove is working correctly:

• Check for proper ventilation. Ensure that your kitchen has adequate ventilation. Open windows, use exhaust fans, or install a range hood to improve airflow.
• Clean the burners. Remove and clean the burners, gas ports, and any other components that may be obstructed by dirt or debris. A brush, compressed air, or a small tool can help with this task.
• Inspect the gas supply. Confirm that your gas supply is stable and at the correct pressure. If you suspect issues with the gas pressure, contact a professional technician to assess and rectify the problem.
• Adjust the orifices. If you have the necessary expertise, you can adjust the orifices to ensure the correct gas-to-air ratio and proper combustion. However, this should be done by a professional if you're not familiar with the process.
• Consult a professional. If you're unable to identify or rectify the problem on your own, it's advisable to hire a professional appliance repair service. They can diagnose the issue accurately and ensure your gas stove is safe to use.

Looking for pros? Download the Thumbtack app.

For complex gas stove issues, it's always a wise choice to seek professional help. Download the Thumbtack app today so you can connect with experienced appliance repair professionals. These pros can help diagnose and fix common gas stove problems that aren't DIY-friendly.

Remember: your safety and peace of mind are paramount when dealing with gas appliances. Don't hesitate to ask for help when needed.

FAQs.

What is the color of the flame of carbon monoxide?

Carbon monoxide (CO) is inherently colorless and lacks any noticeable odor, heightening its potential danger. In cases where incomplete combustion generates CO, there won't be any distinct flame coloration to indicate its presence.

This underscores the importance of having carbon monoxide detectors installed in your home. These detectors serve as vital warning systems, alerting you to potential dangers that can't be seen or smelled.

Can humidity cause orange flames on a gas stove?

One common reason for flames turning orange is excessive indoor humidity. To test if humidity is the issue, homeowners can try opening all windows and doors in the house. Within 5 minutes, the indoor humidity can drop by 20%, and you should see the flame return to its usual blue color.

Related: Gas stove not lighting? Try these DIY fixes.