To get rid of a blue flame in your gas fireplace, adjust the air-to-gas mixture. The amount of air mixing with the gas needs to be reduced, which is done by partially closing the air shutter usually found on the burner tube. Adjust the setting until the flames have soft yellow/orange tips.
It is a common problem that is easily solved. By reducing the amount of air mixing with the gas before it gets to the burner, the color changes from blue to yellow. The more air it pulls from the environment, the more yellow it becomes.
A healthy, properly burning flame on gas appliances should be blue in color, sometimes with a tiny tip of yellow, with a little light blue triangle at the center. This blue color flame indicates that there is safe, efficient and more complete fuel combustion.
The smell of burning gas can cause sensitivity, headaches, and other issues in some people. This can especially be the case with vent-free gas logs. These types of logs don't have a chimney or vent to remove the fumes produced by the fire, so the smell is typically stronger.
Properly functioning gas appliances are quite safe. A blue flame is one indication of proper function and complete combustion. As discussed, malfunctioning units may generate carbon monoxide, due to incomplete combustion.
It is also a good idea to know the signs of a potential CO problem:
A blue flame is an indication that all is well with your gas appliance: this means there is the proper amount of gas and oxygen is being released from the burner. Red or yellow flames means there could be a problem, such as incomplete combustion.
Ventilation in the room you are heating is very important. Check that the room you are heating has air vents and that these are not blocked. If you do not have air vents you should keep a door or a window open to allow the movement of air in and out of the room.
Electric fireplaces: Zero emissions, low maintenance, and “cool-to-touch” safety make them the healthiest choice. Alternative fuels: Bioethanol and pellet stoves are better than wood, but still need ventilation.
Cleaning a gas fireplace thermocouple is a simple maintenance task that fixes pilot lights that won't stay lit. Turn off the gas and let the unit fully cool. Remove the glass and logs to access the pilot assembly. Gently scrub the thermocouple rod with high-grit sandpaper or emery cloth, wipe away debris, and reassemble.
Gas fireplaces typically last between 10 to 20 years, though high-quality models that receive annual professional maintenance can last up to 30 years. The exact lifespan often depends on the specific components, as parts will degrade at different rates.
A blue flame in a fire indicates complete combustion and a highly efficient, oxygen-rich burn. It means the fuel is burning fully, leaving no glowing soot particles, and creating intense heat.
Myth #1 - Gas Fireplaces Are Always More Expensive Than Central Heating. The Truth: Gas fireplaces can be more economical than conventional forced air heating systems, mainly because they can be used for zone heating. You can heat only those areas of the house you need, not the whole house.
Blue flames are good! Taste the meat, not the heat. This is peak wood burning - blue flames indicate the cleanest outgassing fire stage one may achieve.
If you smell gas inside your home or business:
Get out immediately and go to a safe location 300 feet away or more. Instruct others to leave and evacuate the premises immediately. Close the door behind you.
In winter, air out your house 1 to 2 times a day for just 5 to 10 minutes. Keep heating off during this time. This creates a cross-breeze that quickly replaces stale, humid air with fresh outdoor air without cooling down your walls or furniture.
Here's an example to help illustrate this, with a fireplace with a Btu rating of 30,000: (30,000 x 1.59) / 100,000 = 0.47. That means it will cost about $0.47 per hour to run your fireplace. If you run your fireplace for 8 hours a night, it will cost $3.76 a day.
Sooty or yellow/brown stains on or around boilers, stoves, or fires. Smoke building up in rooms. Yellow flames coming out from gas appliances except at natural gas fireplaces. The pilot lights blow out frequently.
It takes 30 minutes to 2 hours to fully air out a house, depending on the length of time the burner was on and the amount of airflow. Natural gas and propane both have a strong, sulfur-like odor (rotten eggs) added to them, making it easy to know when the air has cleared.
Gas logs remain safe in operation, but a defective system combined with inadequate ventilation can result in the development of hazardous gas buildup. All Fireside customers should install carbon monoxide detectors in every area containing a gas fireplace.
A blue flame is generally good, not bad. For gas-burning appliances like stoves and furnaces, a steady blue flame indicates complete combustion, meaning the fuel is burning cleanly and efficiently at a high temperature.
Signs that carbon monoxide is being produced include:
Yellow or orange rather than blue flames (except fuel-effect fires or fuel-less appliances that display this colour flame) Soot or yellow/brown staining around or on appliances. Pilot lights that frequently blow out. Increased condensation inside windows.