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If you smell gas, think you have a gas leak, have carbon monoxide symptoms or have some other emergency situation, go outside and call 911 and then call us at 1-800-344-4077 (24/7).


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News
November 12, 2025

Safety Tips from Columbia Gas during Carbon Monoxide Awareness Month

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descriptivetext
Carbon Monoxide Detector

(Columbus, Ohio) – November is National Carbon Monoxide Awareness Month, and Columbia Gas of Ohio would like to remind customers to take precautions to protect themselves, their families and their homes from carbon monoxide (CO) leaks.

CO leaks are sometimes associated with gas leaks, but they are not the same. CO is produced when fuels like gasoline, wood, natural gas, propane, or oil burn incompletely. CO leaks can occur if a natural gas appliance malfunctions, so it is crucial to have a professional routinely perform safety and maintenance checks around your home.

CO is odorless, tasteless and non-corrosive, so take extra precautions to stay safe from this “silent killer.”

  • Install CO detectors throughout your home: Like smoke detectors, CO detectors play a critical role in home safety. Install a CO detector on every floor of your home and in every room where someone sleeps. Remember to test your CO detectors regularly.
  • Know CO poisoning symptoms: The symptoms of CO poisoning can look like symptoms of the flu, and may include headaches, dizziness, nausea, vomiting and irregular breathing. A warning sign is if you or a family member feels tired at home, but fine when you leave.
  • Don’t ignore the warning signs: At high concentrations, CO can be fatal within five minutes. If you or a family member doesn’t feel well and you suspect CO poisoning, take the concern seriously.

You can implement measures and practices to lower the risk of CO exposure and leaks in your home. Build the following habits into your home emergency action plan and annual routine:

  • Have fuel-burning appliances like your furnace inspected regularly by a qualified technician, especially at the start of every winter heating season. A qualified technician can ensure your appliances are functioning safely, but they can also check that the appliances are using energy efficiently, potentially saving you money on your energy bill.
  • Find and utilize qualified contractors. You can find a qualified contractor on our Columbia Gas Trade Allies page.
  • Check vents and chimneys regularly and clear them of any debris or other blockages.
  • Use space heaters safely and only in accordance with manufacturer guidelines.
  • Only heat your home using appliances made for that purpose. Never use a stove or oven to heat your home.
  • Make sure everyone in your home knows what to do if you detect a CO leak. If you believe you have a CO leak, leave the area to get fresh air, call 911 and DO NOT GO BACK until repairs are made and it is safe to reenter your home.

Your safety and the safety of your family is critically important. If you believe you are smelling the rotten egg odor of natural gas, stop what you are doing, leave the area, and call 911 and Columbia Gas from a safe distance at 1-800-344-4077.

Learn more about carbon monoxide and find more safety tips at ColumbiaGasOhio.com/CO.

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About Columbia Gas of Ohio

Columbia Gas of Ohio delivers clean, dependable and efficient natural gas to approximately 1.5 million customers across the state. With headquarters in Columbus, it is the largest natural gas utility in Ohio. Columbia Gas of Ohio is one of six regulated utility companies of NiSource (NYSE: NI), one of the largest fully-regulated utility companies in the United States. NiSource employees are focused on our mission to deliver safe, reliable energy that drives value to our customers, and guided by our vision to be an innovative and trusted energy partner. More information about Columbia Gas of Ohio and NiSource, including its goal of achieving net zero greenhouse gas emissions from its operations by 2040, is available at www.ColumbiaGasOhio.com and www.NiSource.com.

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Have an emergency?

If you smell gas, think you have a gas leak, have carbon monoxide symptoms or have some other emergency situation, go outside and call 911 and then call us at 1-800-344-4077 (24/7).