Oven Smells Like Gas When Preheating

If we don’t have an oven in our kitchen, how can we eat that cake, bread, and pizza?

Gas leakage is a frequent issue that is unsafe. The house may smell like a ruined egg, but that doesn’t always indicate it’ll catch fire. Explore how to use it correctly and decrease risky situations in your residence regarding threatening odors.

Using an oven appears simple, yet several complications confuse people. Likewise, the oven smelling like gas when preheating has become a common problem, but several solutions are!

Chefs prefer gas ovens because they heat instantly, reliably, and effectively. The disadvantage of a gas oven is that gas is highly explosive and can be dangerous if inhaled excessively. 

Natural gas

Natural gas is odorless and colorless in its natural form. Gas manufacturers add a chemical to give the gas its distinctive rotten-egg odor. If your oven smells like gas when preheating, it could be a sign of a dangerous situation that needs urgent action.

What are the Indications of a Gas Leakage?

Natural gas companies introduce a sulfur fragrance to the gas, which provides you an alert during gas leakage. Sometimes if you do not notice an unusual scent, your stove might even leak. A gas leak induces some signs, such as dizziness, nausea, and headaches. With constant exposure, you could perhaps start noticing stomach problems, and vomiting. 

What are the Reasons for Gas Smell from Oven When Preheating?

Burned Smell

Do you feel a sudden unpleasant odor when you use a gas oven? Don’t worry; it’s just the odorant used in natural gas. The odorant makes natural gas odor unpleasant, helps people to notice gas leaks. Natural gas emitted to the atmosphere outside of pipelines has no smell, making it difficult to distinguish an unsafe leak.

An odorant should mix in natural gas and propane due to potential risks because many users are unaware that the gases are odorless. The odorant can easily detect through smell before they cause danger.

When you initially switch on your oven, it may emit a powerful smell. The odor will generally diminish, but if it persists, you should be concerned about it.

Igniter problem 

All oven igniters are covered up when you’re preparing the meal. When food starts to boil, it can get on the oven’s burner and unintentionally ignite. That’s why all oven igniters keep hiding behind the stove. So when food pours out of the pan, it will never directly interact with the oven’s igniter, avoiding a fire.

The igniter can sometimes cease to light up after subjecting it to grease or airborne particles. Prolonged exposure to these substances can weaken the igniter’s effectiveness.

The igniter in the gas oven is one of the most challenging things to clean. Because most ovens use an open flame ignition, which means it is always hot, even after turning off the oven. That makes it very hard for water to wash off excess oil, making it difficult to clean without harsh chemical agents.

Cooking is safe and quick if you use an oven that ignites appropriately and efficiently. At the first 15 to 30 seconds, a gas oven with a working igniter will warm up, and you should only smell a faint scent of gas during this time – if any.

Chemical Odor

It mostly happens with the new ovens that cause a chemical smell because the oven’s insulation exposes to excessive temperature for the first time. To solve these issues, you have to burn in your oven.

If your oven generates a gas-like odor while in use.

Do not use if the gas odor does not go after some moments. Switch off the oven and then the gas at the supply. Open the windows immediately and contact a company that works in appliance repair. If you feel lightheaded, nauseous, or have discomfort, go outside and call local emergency services.

The oven smells like gas when preheating.

So, if you’re using a gas oven and it smells gas, you may have just turned it on. Because the gas will burn up, and the weird smell is natural. You will feel a gas-like smell, and it will go away automatically within several mins. If the odor remains, you should consider the following actions:

Oven Cleaning 

Not cleaning the ovens regularly also triggers odors. The ovens must clean daily to make sure nothing accumulates inside the oven. Clean the oven after meal preparation when the oven settles down. It will lessen the chance of odor. 

Some ovens have a feature of “self-cleaning,” so you can use that option to achieve effective cleaning. You need to remove the racks before using the self-cleaning option.

When it comes to spotting cleaning, you’ll need to use versatile oven cleaners. You need a soap and water solution and a towel to clean the outside. So clean up the oven on time, and you will not suffer from the gas smells.

Gas leakage 

Though the oven is all clean, one other cause is gas leakage. The gas leakage is quite risky, and you must immediately turn off the oven. Open the windows for maximum ventilation after turning off the oven. 

Recognize if you can hear the hissing sounds that indicate gas leakage. But on the other hand, when using an electric oven, avoid touching the electric controls or switches to prevent the current.

Remaining Packing Stuff

If you recently purchased a new oven and it releases a gas odor, it is probably due to residual packing stuff. As a result, after activating the preheating feature, the packing stuff turns heated and burn, resulting in dangerous smells. You should turn off the oven instantly. 

Also, several ovens fit with a protective oil layer that might cause odor. Hence, make sure the oven is clean when turning it on.

Gas connections 

The gas connections to the ovens should be highly durable and strong. So, if you smell bad gas odors, the connections are disrupted, and gas is leaking out. Turn off the oven immediately and contact a repairer to fix the links to resolve this issue.

Important: If you suspect a gas leak, leave your home immediately. You have switched off gas to your residence at the meter or controller if you can do so conveniently. If you can’t comfortably shut off your gas, don’t fire any matches, lighters, or devices that use gas. Don’t try smoking or start operating any combustion engines.

The differences between gas and electric ovens are noticeable. Electric ovens are heated through an electric heat source, whereas gas ovens by natural gas or propane.

However, if the smell doesn’t go away even after repeating all that listed in the post, you will have to repair the oven. For future usage, we are giving some simple guidelines for people who want to use these ovens, including;

  • Adjust a carbon monoxide alarm (activated by any fuel-burning device) in the kitchen so that you can get a notification if there is a leakage.
  • Do not use highly flammable oven cleaning solutions.
  • Learn how to turn on the natural gas supply. 
  • Every time turn off the power connection before bedtime. 
  • Don’t try to fix something on your own and contact an expert.

Frequently asked questions 

Can we smell gas when the oven is preheating?

It’s common to notice a strange odor initially when the oven turns on. The odor generates by gas combustion at the burner, and it will fade when the oven gets hot after a few times. This odor is like that of rotting eggs.

What are the indications that my oven is leaking gas?

Check and confirm for a sulfur or rotten Egg Smell. However, many gas manufacturers put an ingredient called mercaptan(foul-smelling gas) into natural gas to give it a unique smell. Also, listen for a whistling or hissing sound of gas leakage.

Why does my kitchen smell like gas but no leak?

Sulfur is the reason for a gas smell in the kitchen without gas leaks, similar to the foul rotten odor, but it’s not dangerous. The bacteria in sewage systems or sinks discharge sulfur usually causes the odor to circulate in your kitchen.

Can a carbon monoxide alarm sense a gas leak?

No, a carbon monoxide alarm cannot sense a natural gas leak. Carbon monoxide (CO) is a toxic gas generated when fuel burns in low oxygen levels.

A carbon monoxide sensor isn’t for monitoring the flow of gas. Rather, these machines notify for raised amounts of carbon monoxide in the air from toxic gases.

How does a gas oven leak gas?

Purchasing a gas stove arrives with the possible risk of a gas leak, which leads to an increased risk of a burst from a spark. A gas stove might leak, even if you switch off the buttons of the stove. Troubles with the fuel system can also aggravate a gas leak.

A connector on the fuel line connects the line to the stove. A damaged connector could let the gas release from the line. Cracked seals are also another reason for leaking gas.


So, if the oven smells like gas when preheating, it’s most likely due to a burnt odorant that smells like gas or a weak gas ignitor that can’t ignite the gas burner in a fixed amount of time.

When the oven smells like a gas while preheating and no burners are left on, the house must leave as quickly as possible and contact an expert appliance repair service. Thus they know how to fix it as soon as possible. 

About Harris V.

Harris is a content coordinator and senior writer at Gliving. After years of cooking professionally, Harris traded in his knives for the pen. He spends most of his time writing these days but still loves to get down with some delicious recipes in the kitchen for his family.