Carbon monoxide leaks are potentially dangerous. While this gas is produced anytime something is burned, including for heat and energy, a build-up of it can be hazardous to your health. Building codes and safety authorities mandate carbon monoxide detectors for this reason. You should have at least one in your home. However, it can still benefit you to understand the common sources of carbon monoxide leaks and the signs that you might have one in your home. 

Clothes Dryers 

Dryers create carbon monoxide and have issues with ventilation more than many other appliances in your home. Keeping your dryer clean of lint and functioning properly is important to prevent leaks. 

Water Heaters and Boilers 

Water heaters may also be the source of a carbon monoxide leak, particularly gas water heaters. Boilers, operating on much the same principle, can also create backlogs of this gas. 


Furnaces can be sources of carbon monoxide, particularly if they were improperly installed or have not been maintained. Scheduling your yearly furnace maintenance appointment is very important to maintain safety. 

Is it about time you schedule your annual furnace maintenance appointment? Contact our professionals at Dunn Heating ClimateCare today. 

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Gas Stoves 

Ovens and stoves that run on gas may become the source of a carbon monoxide leak. If you have one of these appliances it is important to have another carbon monoxide detector near it. 

Motor Vehicles 

Do you run your vehicle in the garage? Or, is there a way for your idling vehicle’s fumes to get trapped in the house? Both can cause build-ups of carbon monoxide. 

Gas-Run Landscaping Items 

It’s rarer, but possible, for the items you have running on gas outside of your home to accidentally exhaust into the home, your garage, shed, or another enclosed area. This could create a dangerous amount of gas, so it is important to consider where your appliances are venting to. Potential gas-run items you might have include: 

  • Grills and barbeques (even small camping grills) 
  • Gas-powered generators 
  • Power tools 
  • Lawnmowers and weed wackers 
  • Other gardening equipment 


Whether you use your fireplace as your main source of heat or not, a gas-burning fireplace may also release carbon monoxide. 

Wood Stoves and Wood-Burning Fireplaces Words 

Gas is not the only fuel that increases your risk of a carbon monoxide leak. Wood-burning also produces this gas. 

How to Tell if You Have a Carbon Monoxide Leak 

Here are the signs of a carbon monoxide leak in the home: 

  • You can see or smell smoke 
  • The gas flame is “floppy” 
  • The flame burns yellow or orange 
  • There is soot or other build-up 

You may also be able to tell if you experience the physical signs of carbon monoxide poisoning: 

  • Headache 
  • Weakness 
  • Nausea/vomiting 
  • Blurred vision 
  • Dizziness 
  • Confusion 
  • Shortness of breath 
  • Loss of consciousness 

Are you looking for more information on home safety? Our team at Dunn Heating ClimateCare would be happy to help answer any of the questions you may have. Give us a call today. 

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