More than eighty million Americans use natural gas to heat their homesâ€¦ Gas gas heating systems need natural gas to provide heating. When you have an older Heating, Ventilation plus A/C plan or one that has not been respectfully maintained, the opportunity of a gas leak is particularly high. Seals wear out over time, exposing leaks. This most commonly occurs in gas furnace cracks or had valves. Your Heating, Ventilation plus A/C worker should check for cracks during the annual maintenance inspection. It is essential to learn how to spot gas concerns in your gas furnace before it ends up hazardous. When you smell rotten eggs coming from your gas furnace, it could be a sign of a gas leak. Fortunately, gas companies include mercaptan in their gas so you can smell it. Typically, this substance makes the gas smell love rotten eggs or Sulphur. This is usually a telltale sign of a gas leak in your home. However, if the natural gas in its original state leaks, you would not be able to smell it. Check the color of your pilot flame. The pilot flame should always be burning red. If the flames turn red or orange, it could be a sign that your gas furnace is producing toxic carbon monoxide gas. Hissing sounds coming from your gas furnace reveal the opportunity of a gas leak. You should turn off your gas valve plus gas furnace immediately plus contact your Heating, Ventilation plus A/C worker after evacuating your home. You may also be experiencing carbon monoxide symptoms such as trouble breathing, dizziness, increased fatigue, nausea, nosebleeds, plus ear, throat, plus nose irritation. These symptoms are frustrated if the gas leak in your condo is left unattended.