What Happens If You Leave The Oven On?

Leaving the oven on for several hours or overnight might be stressful, yet it occurs to everyone at some time in their life. Unfortunately, we forget to switch off the oven after turning it on to cook supper or bake cookies!

You can’t be sure that you turned off your stove or oven no matter how hard you attempt to retrace your actions.

What happens if you leave the oven on by accident? – It’s possible you can start a fire. Also, if you leave an electric oven on, you may have carbon monoxide poisoning.

Continue reading to find out more!

What Happens If You Leave The Oven On?

Electric Oven 

What Happens If You Leave The Oven On

Electric ovens work on electricity rather than gas and are safer to leave on than older gas stoves since they do not generate carbon monoxide. As a result, electric ovens are regularly left on for long periods without causing harm.

A fire may result if there are combustible or readily ignitable materials, such as oil or crumbs from leftover meals. Grease, in particular, is highly flammable and can easily ignite if left unattended.

When people use electric ovens to heat their homes, they risk themselves. As a result, they keep the oven running for hours or overnight to heat the room and crack the door open.

The oven knobs and temperature dials may melt and catch fire due to this. And if the homeowner has anything else around, such as oven mitts or kitchen towels, those might catch fire as well, and the kitchen or worse could be engulfed in flames before you know it.

Gas Oven

leave a gas oven unattended

It’s even riskier to leave a gas oven unattended when it’s been turned on. If you are not at home, it may spark a fire, but if you are, you may be at risk of carbon monoxide poisoning without even realizing it.

If you are at home and haven’t noticed that your gas oven is still turned on, you may be experiencing symptoms of carbon monoxide poisoning. First, check to see whether your oven is on and contact 911 if you are disoriented, your eyesight becomes fuzzy, and you are out of breath.

Investing in a carbon monoxide detector is one approach to avert this scenario. For any type of oven, a smoke detector is an excellent idea.

Compare your gas bills over two to three months to see if your stove is leaking gas. There might be a gas leak if you observe an unexpected increase in expense. There’s likely a gas leak if you can smell gas even when the stove knobs are turned off.

What Happens If You Leave The Stove On?

Electric Stove

What Happens If You Leave The Stove On

You’ll be relieved to learn that stoves are designed to “run endlessly.”

The stove itself would not cause a fire; instead, anything was left on the burner or on the stove itself may cause flames. So, for example, you can’t indeed lay a pot of boiling stew on the burner and forget about it.

If the pot is left uncovered and all of the liquid evaporates, the contents might reach a point where they start to burn, posing a fire hazard.

Gas Stove

the gas stove is left unattended

Leaving a gas stove on can quickly escalate into a hazardous situation if the gas stove is left unattended, which happens to be the most prevalent cause of kitchen fires.

Follow these steps if you find you’ve left your gas stove on when you get home:

  • Do not use any electrical appliances (i.e., lights, etc.)
  • Turning on any form of gas appliance is not a good idea (i.e., gas fireplace)
  • Do not even flip a light switch on or off.
  • The windows should not be opened or closed.
  • You probably should not even turn the car on in the garage or your driveway.
  • Immediately gather your family and pets (if you have any) and leave the house.
  • Call 911 – when the emergency responders arrive, they will investigate the home and your gas line

How Long Can I Keep My Oven Turned On?

How Long Can I Keep My Oven Turned On

You may keep your oven running for a lengthy amount of time – twelve hours or more – as long as the door is closed and the oven is not malfunctioning or unreliable. However, the general rule is that leaving the oven on and the door open for a lengthy time is extremely risky, owing to the risk of fire and carbon monoxide poisoning.

Overall, ovens are not built to catch fire, so you can leave them on for hours and not worry about them catching fire. However, when anything within the oven ignites a flame or the oven itself malfunctions, problems arise. This is a significant problem in the gadget if your oven unexpectedly bursts into flames after a few hours.

Always keep in mind that keeping your oven on wastes money, whether it’s on your electric or gas account. In addition, if you’re keeping your gas oven on overnight to avoid carbon monoxide poisoning, adding a carbon monoxide detector can be a good idea.

Check out this tutorial if you are not sure about your stove and oven:

What Are Top Stove Alarms And Shut-Off Devices?

For electric ovens and stovetops, there are numerous stove alarms and timers available to assist you in dealing with an older senior living at home who has or may leave an oven or stove on accidentally.

  • The Simple Touch C30004 is a budget-friendly timer and shut-off device for small appliances and electrical gadgets.
  • Electric Auto Stove Shut Off Safety Device to Prevent Fire: It doesn’t utilize a timer; instead, it connects to your smoke detectors and turns off the burner automatically when the smoke detectors go off.
  • Smart Monitor For Electric Stoves Wallflower: A wi-fi equipped plug that allows you to remotely monitor your electric stove (or your parents’ stove) using your smartphone. It may also be connected to an Alexa device, allowing you to set the timer or even notify your contacts that supper is ready using your voice!
  • GuardStove Intelligent Stove Shut Off Device: If you leave your stove alone, iGuardStove will automatically turn it off. It has a motion detector and a power box, and it employs an automated shut-off mechanism. It also has built-in Wi-Fi so that you can get online updates regarding the shutdown.
  • CookStop Stove Top Fire Prevention: Smoke alarms and sprinklers are excellent home safety features, but they do not prevent fires. Like the other products we’ve looked at, Cooktop won’t wait for a fire to start before shutting down or informing you.


You don’t want to take any chances, so you turn around and drive back home, shutting off the appliance in most circumstances. But, it’s riskier to leave a gas oven unattended than an electric one when it’s been turned on. 

If you are not at home, it may spark a fire, but if you are, you may be at risk of carbon monoxide poisoning without even realizing it. Now you know what happens if you leave the oven on and handle the situation, you may make a smart decision. Good luck, and remember to check before you leave home!

Further readings

Leave A Comment

Your email address will not be published. Required fields are marked *