Natural gas is mixed with air before reaching the flame, a process known as premixed combustion. This allows the gas to burn clean into mostly carbon dioxide and water vapor. The result is the blue flame you see every time you fire up your stove for cooking.
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.
Open it and bluer flames, close it some and more yellow flames. Close it too far and you will get a dirty sooty burn. It should have a set screw, loosen and adjust (close) in 1/8'' increments for more natural yellow. Close it too far and the logs, firebox and air will get sooty (bad).
A blue flame means complete combustion of the gas. With complete combustion, LPG (Propane) burns with a blue flame. Pure hydrocarbons like methane (refined natural gas), propane, butane and ethane gases also burn with a blue flame. These gases are all alkanes and are gas that burns with a blue flame.
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.
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.
Chirps every 30 seconds together with a blue flashing light indicate lower levels of carbon monoxide that could become dangerous. Open all doors and windows immediately, and stop using all gas appliances until a professional has checked them.
Gas fireplaces are safe. But as with all gas appliances, they do produce carbon monoxide. If something goes wrong, carbon monoxide put the home's occupants at risk. It's not always easy to tell when theres a carbon monoxide leak.
A blue flame colour means complete combustion. This indicates that the gas is being burned efficiently without any unburned and wasted substances.
To adjust air shutter: • Loosen the screw on the burner assembly. To close the air shutter, turn shutter clockwise. To open air shutter, turn shutter counterclockwise. Tighten the screw.
To adjust the color of your gas fireplace flame, refer to the gas control knob or pilot knob. Follow the manual guide or step-by-step instructions provided by the manufacturer to adjust the flame color to your desired preference.
The flame should never be yellow. A yellow flame indicates the fuel is not being burned property. It is all blue. This is good since it indicated the gas is burning correctly.
The first thing you need to know is that blue is the correct color for a pilot light. The reason that this happens is that methane—the primary chemical compound in natural gas—gives off a blue radiance when it's ignited. You'll probably see a touch of yellow near the tip of the flame, and that's normal.
The danger of orange or yellow flames
technician or fire department to check it out. Remember, you can't see or smell carbon monoxide, so it's important to have carbon monoxide alarms placed throughout your home.
Blue flames signify that the right amount of air and gas is being mixed, creating a clean and more complete combustion burn. This not only ensures efficient combustion and optimal heating for your home but also contributes to energy efficiency, potentially saving you money on heating bills.
A blue color when gas is burning indicates a properly burning flame. This means that the gas is burning at the color it was designed to. You may see a yellow tip of color at the top of the flame, indicating that the temperature is dropping as the flame glows higher.
Natural gas itself is a colourless gas whilst a natural gas flame burns with a blue colour. Gas that burns with a blue flame includes pure hydrocarbons like methane (refined natural gas), propane, butane and ethane. These gases come from raw natural gas processing and oil refining.
The flame color of natural gas (and LPG)
The blue color of the flame results from the efficient and complete combustion of methane. In this ideal combustion scenario, an adequate oxygen supply allows the methane to oxidize fully. The blue flame indicates no incomplete byproducts or impurities in the flame.
Englund suggests starting by opening windows in the room where the fireplace is located, and perhaps opening some other windows on the same floor to create cross-ventilation. Turn on overhead ceiling fans or other ventilation if possible.
You start smelling strange odors
This smell should go away after three to four hours of use. A dirty fireplace with excessive pet hair or dust can also produce an odor. If you smell rotten eggs, call for help immediately, as you likely have a gas leak.
Yellow or Brown Stains. Appliances that run on combusting fuel should have unobstructed ventilation. If you notice brownish-yellow or soot-like stains around a heater or gas fireplace, there may be combustion issues. This can be a sign of a carbon monoxide risk.
Therefore, carbon monoxide reduces CuO to Cu.
Carbon monoxide burns with blue flame. In the presence of oxygen including atmospheric concentrations carbon monoxide burns with a blue flame producing carbon dioxide. When nitrogen gas burns, It has no color, odor or taste, and produces water when it burns in air.
BLUE/CO: Blue light flashes rapidly when sensor detects elevated CO levels. Horn alarms 4 times, pauses, repeats. RED-YELLOW-ORANGE/SMOKE: Patented Red-Yellow-Orange light flashes rapidly when sensor detects elevated smoke levels.