--- title: "Carbon Monoxide and Your Stove: When to Worry and What to Do" description: "How a gas smell differs from carbon monoxide, the uses that turn a gas stove into a source, the symptoms, what to do when the alarm sounds and where alarms…" url: "https://stoverepair.center/guides/stove-carbon-monoxide-and-when-to-worry/" date_modified: "2026-09-26" --- Gas, fire and burn safety at the stove # Carbon Monoxide and Your Stove: When to Worry and What to Do Stove carbon monoxide is a real concern when a gas stove or oven is used to heat the home, runs for hours with its air blocked by foil or grill plates, or burns yellow and leaves soot on pans. If the alarm sounds or people feel headachy, dizzy or sick, everyone goes outside and calls 911 before anyone looks at the stove. By [StoveRepair.center technical team](https://stoverepair.center/authors/technical-team/) Published September 26, 2026 ## At a glance. A gas stove that lights blue, cooks a meal and is switched off is not what fills a house with carbon monoxide. The worry belongs to a handful of situations, most of them about using the stove for something other than cooking, and to one sound: the alarm. Read the whole guide ### What you can smell Not carbon monoxide The rotten-egg odor is added to gas to warn of a leak; carbon monoxide itself has no smell or color. ### Never The stove or oven as a heater Ready.gov, CDC and GE all rule it out, outage or not. ### First signs Headache, dizziness, nausea, confusion CDC describes them as easily mistaken for the flu. ### Alarm upkeep Test with the clock change, replace per the maker CDC points to the maker's schedule, often about every 5 years. In this guide 1. A gas smell and carbon monoxide are two separate warnings 2. The situations that turn a gas stove into a source 3. What poisoning feels like, and who feels it first 4. When the carbon monoxide alarm goes off 5. Alarms near the bedrooms and a yearly look at gas appliances 6. Step by step 7. Questions ## A gas smell and carbon monoxide are two separate warnings Owners asking about stove carbon monoxide often have a gas smell in mind, and the difference changes what you do. The smell of rotten eggs near a gas stove is the odorant a utility adds so a leak can be noticed; that is unburned gas, and the answer is to leave and call the gas utility from outside. Carbon monoxide is what a flame produces when it does not get enough air to burn completely, and it gives your nose nothing at all. A coil, glass or induction stove burns no fuel and makes no carbon monoxide of its own. A carbon monoxide alarm can still go off in a kitchen with an electric stove, because CDC's list of sources includes furnaces, water heaters, fireplaces, cars and portable generators, and any of them can share air with the kitchen. Source: [CDC — About Carbon Monoxide Poisoning](https://www.cdc.gov/carbon-monoxide/about/index.html) — Sources include furnaces, water heaters, stoves, fireplaces, cars and portable generators; common symptoms and who is most at risk; sleeping people can be harmed before symptoms; get to fresh air and call for help; never heat a house with a gas oven; battery-operated detectors near sleeping areas, batteries checked with the clock change, replaced per the maker; yearly service of gas, oil and coal burning appliances ## The situations that turn a gas stove into a source A few everyday uses change the picture on a gas stove, and GE's owner's manual for its gas models names most of them. The first is heating. On a cold night or during a winter outage it is tempting to turn the oven on with the door open or leave every burner running, and Ready.gov is blunt: do not use a gas stove or oven to heat your home, because it raises the risk of carbon monoxide poisoning. GE adds that it overheats the oven as well. The rest are about starving the flame of air: - Foil laid over the oven floor, its slots or a whole rack, which GE says blocks the air the oven needs and may cause carbon monoxide poisoning. - Foil wrapped around the stovetop grates or lining the area under them. - A grill plate bought separately and set over a gas burner, which GE says causes incomplete combustion. - A wok support ring placed over a burner instead of a flat-bottomed wok standing on the grate. - A burner that has burned with yellow, floppy flames for weeks and blackens the bottoms of pans. ### Long bakes and holiday cooking A gas oven running for several hours for a roast or a day of baking, in a closed-up winter kitchen with many people in it, is a different load from a twenty-minute dinner. Running the exhaust fan, cracking a window and keeping the oven floor clear of foil all help. It is also the day a working alarm earns its place. Source: [Ready.gov — Power Outages](https://www.ready.gov/power-outages) — Do not use a gas stove or oven to heat your home; install working carbon monoxide detectors on every level of the home; [GE Appliances — Owner's Manual, Single Oven Gas Ranges (49-2000316)](https://images.salsify.com/image/upload/s--QvFl5fh9--/049499dddf2b280226be7b9dd09299ce63308b57.pdf) — Never use the appliance as a space heater: carbon monoxide poisoning and oven overheating; no foil on grates or oven bottom; after-market stovetop grills cause incomplete combustion; no wok support ring; [GE Appliances — Installation Instructions, Gas Range (31-2001181)](https://images.salsify.com/image/upload/s--908c05QS--/f3ee5a7cd364e8da504dd855094d7730a19cf416.pdf) — Yellow burner flames call for service; soft blue flames are normal on natural gas Close on a plain white alarm on a hallway ceiling near a kitchen doorway. ## What poisoning feels like, and who feels it first CDC lists headache, dizziness, weakness, upset stomach, vomiting, chest pain and confusion as the most common symptoms, and notes that they are easily taken for the flu. A pattern worth noticing is the one that follows the house: several people, or a person and a pet, feeling unwell at home and better after an hour outside. Infants, older adults and people with heart disease, anemia or breathing problems get sick from carbon monoxide sooner, according to CDC. People who are asleep may be harmed before they notice anything, which is why the alarm, not how anyone feels, is the warning to rely on at night. - Several people, or a person and a pet, unwell at home at the same time. - Symptoms that ease after time outdoors and return back inside. - Headaches that start during long cooking sessions with the windows shut. - Someone unusually drowsy or muddled after the oven has been on for hours. Source: [CDC — About Carbon Monoxide Poisoning](https://www.cdc.gov/carbon-monoxide/about/index.html) — Sources include furnaces, water heaters, stoves, fireplaces, cars and portable generators; common symptoms and who is most at risk; sleeping people can be harmed before symptoms; get to fresh air and call for help; never heat a house with a gas oven; battery-operated detectors near sleeping areas, batteries checked with the clock change, replaced per the maker; yearly service of gas, oil and coal burning appliances ## When the carbon monoxide alarm goes off Treat a full alarm as real. Get everyone, pets too, outside into fresh air right away and call 911 or the fire department from there; CDC's advice is fresh air first and emergency help second. Turning the stove off on the way out is fine if the knob is under your hand, but nobody should stay inside to find the cause. Stay out until the responders say the air inside is clear. If they point to the stove, leave it off until a technician has seen it, and tell us what was running when the alarm went off: the oven, how many burners, for how long and with what on them. ### A chirp is not the same signal Most alarms have a separate short chirp for a low battery or for the end of their working life, and it sounds quite unlike the full alarm. The pattern for each is printed on the alarm or in its leaflet; read it before you need it, and never pull the battery to silence a sound you are not sure of. Source: [CDC — About Carbon Monoxide Poisoning](https://www.cdc.gov/carbon-monoxide/about/index.html) — Sources include furnaces, water heaters, stoves, fireplaces, cars and portable generators; common symptoms and who is most at risk; sleeping people can be harmed before symptoms; get to fresh air and call for help; never heat a house with a gas oven; battery-operated detectors near sleeping areas, batteries checked with the clock change, replaced per the maker; yearly service of gas, oil and coal burning appliances ## Alarms near the bedrooms and a yearly look at gas appliances CDC asks for a battery-operated carbon monoxide detector, or one with a battery backup, near the sleeping areas, with the batteries checked when the clocks change in spring and fall and the detector replaced on the schedule its maker gives. Ready.gov asks for a working detector on every level of the home. A kitchen with a gas stove benefits from one on the same floor, placed where its instructions allow. CDC also recommends having gas, oil and coal burning appliances serviced by a qualified technician every year. For a stove, that visit is about the flame: whether each burner and the oven burner light promptly and burn blue, whether the air openings are clear, and whether the oven vent is free. ### Older stoves with a standing pilot Some older gas stoves and a few heritage models keep a small pilot flame burning all the time instead of lighting with a spark. A pilot that burns yellow, flickers or keeps going out deserves the same attention as a yellow burner flame, and working out why it will not stay lit is a job for a technician. Source: [CDC — About Carbon Monoxide Poisoning](https://www.cdc.gov/carbon-monoxide/about/index.html) — Sources include furnaces, water heaters, stoves, fireplaces, cars and portable generators; common symptoms and who is most at risk; sleeping people can be harmed before symptoms; get to fresh air and call for help; never heat a house with a gas oven; battery-operated detectors near sleeping areas, batteries checked with the clock change, replaced per the maker; yearly service of gas, oil and coal burning appliances; [Ready.gov — Power Outages](https://www.ready.gov/power-outages) — Do not use a gas stove or oven to heat your home; install working carbon monoxide detectors on every level of the home ## Where to stop Adjusting burner air shutters, oven burner flames or the gas regulator is technician work, and so is anything past the shutoff valve behind the stove. If yellow flames and soot return after the burner caps and ports have been cleaned, or anyone has felt unwell while the stove was running, stop using the gas burners and book a visit. Written by [StoveRepair.center technical team](https://stoverepair.center/authors/technical-team/). The people who come to your kitchen when a stove visit is booked on this site. They write from what they find behind the storage drawer, under the stovetop and inside the oven of stoves in everyday homes, and they check it against the maker's own manuals whenever a manual is available. Sources: [CDC — About Carbon Monoxide Poisoning](https://www.cdc.gov/carbon-monoxide/about/index.html) · [Ready.gov — Power Outages](https://www.ready.gov/power-outages) · [GE Appliances — Owner's Manual, Single Oven Gas Ranges (49-2000316)](https://images.salsify.com/image/upload/s--QvFl5fh9--/049499dddf2b280226be7b9dd09299ce63308b57.pdf) · [GE Appliances — Installation Instructions, Gas Range (31-2001181)](https://images.salsify.com/image/upload/s--908c05QS--/f3ee5a7cd364e8da504dd855094d7730a19cf416.pdf) ## Step by step. Four steps, in the order worth doing them. 01 ### Out into fresh air When the alarm sounds, take everyone outside at once; do not stay to search for the source. 02 ### Call from outside Phone 911 or the fire department once you are out, and mention anyone feeling sick. 03 ### Wait for the all-clear Go back in only when responders say the air is safe. 04 ### Leave the stove off If the stove was involved, keep it off until a technician has checked the burners, the oven burner and the air openings. For the heart of your home. ## Questions owners ask. ### Can a carbon monoxide alarm be fooled by a gas leak? A carbon monoxide alarm is built to sense carbon monoxide, not natural gas. A separate natural gas detector exists for leaks; neither replaces leaving the house when you smell gas. ### Is it safe to boil water on the stove to warm the house during an outage? No. Using the gas stove or oven for heat is exactly what Ready.gov and CDC warn against, however briefly it is meant to run. ### Our alarm is in the hallway. Should there be one in the kitchen too? CDC's priority is near the bedrooms and Ready.gov's is every level. A kitchen alarm is an addition, not a replacement, and its leaflet will say how far from the stove it should sit. ### Does a self-cleaning cycle make carbon monoxide? The self-clean cycle burns off food soil at high heat, and the smoke and fumes are real, so run the fan and open a window. If a carbon monoxide alarm sounds during one, follow the same steps as any other alarm. ## The problems behind it. Each has a page of its own: what it usually means and the causes in the order worth checking. [All 17 problems](https://stoverepair.center/problems/) Problem ### Stove Flame Too High or Too Low 6 causes, cheapest first Gas, fire, sparks or a burner stuck on ### Stove Smells Like Gas 5 causes, cheapest first Gas, fire, sparks or a burner stuck on ### Stove Smoking 6 causes, cheapest first ## When it needs a technician. The repairs on the right are where this guide ends when the checks do not settle it. ### Diagnostic visit A visit that cooks on your stove the way you do, burners on top and the oven below, and finds the part that failed before anything is ordered. ### Stove burner repair Gas burners on a stove that light weakly, burn unevenly or will not hold a steady flame, fixed at the cap, the burner head, the orifice or the valve behind the knob. ### Gas and power hookup check A check of what connects your stove to the house, the gas valve and connector or the cord and outlet, plus the anti-tip bracket, when a stove is moved, replaced or has sat unused. ## More in gas, fire and burn safety at the stove. Putting out a grease fire on the stovetop, keeping small children away from the knobs and the oven door, and knowing when a stove could be a carbon monoxide worry. [The whole section](https://stoverepair.center/guides/safety-and-food/) Keeping the household safe around the stove ### Putting Out a Grease Fire on the Stove: Lid On, Heat Off, No Water How oil in a skillet catches, sliding a lid across it, why water and a walk to the sink spread the fire, flames in the oven and what to check before the next meal. Keeping the household safe around the stove ### Small Children and the Stove: Handles, Knobs and the Oven Door A three-foot clear zone, handles turned inward, the control lock and knob covers, the cabinet above, and checking that an open oven door cannot tip the stove. Guides ### All 18 guides Six sections, by what you are trying to find out. --- **[Read on the site: Carbon Monoxide and Your Stove: When to Worry and What to Do](https://stoverepair.center/guides/stove-carbon-monoxide-and-when-to-worry/)** **[Book a visit with StoveRepair.center](https://stoverepair.center/schedule/)**