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Post Date:10/10/2018 1:57 PM

Maintaining natural gas appliances ensures they are operating efficiently. The natural gas flame on appliances should be blue with a hint of yellow near the tip. If you have a yellow flame, call a qualified contractor to inspect it, as it may indicate incomplete combustion and is potentially dangerous. If your appliances are not operating properly or are not properly ventilated, carbon monoxide (CO) may be produced because of incomplete combustion when fuel burning appliances are not properly adjusted or ventilated.

Initial symptoms of exposure to CO are similar to the flu (without the fever) and may include nausea, fatigue, dizziness, or headaches. If CO is present (it is colorless and odorless), it may affect everyone differently, but can be fatal.

Home Safety Tips:
• CO detectors are not required but are recommended, be sure to check the batteries annually
• Follow manufacturers’ instructions for the care and use of gas appliances and equipment.
• Hire qualified industry professionals to install and service gas appliances
• Inspect all gas appliances, connectors, furnaces, vents, flues, chimneys, and gas lines to your home
• Replace furnace air filters monthly throughout the heating season
• Never operate gasoline powered engines or charcoal grills in closed garages, basements or buildings

If CO poisoning is suspected get fresh air immediately, call 911, seek medical attention and call the City of Mesa at 480-644-4277 (GASS).

For additional home safety tips about how to prevent CO poisoning, or to learn how to respond to a gas emergency, visit

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