Yellow flames from a natural gas furnace indicate that the combustion ratio is off and you have too much excess air in the mixture, if the discolored flame is isolated in the burner meaning on only 1 out of 3 or more then the burner/orifice may be out of alignment or there maybe a crack in the exchangers cell.
If the furnace is direct ignition, The HSI or spark ignites the flame. A flame sensor passes current through the flame, if current is present the main.
The gas furnace pilot (flame is lit all the time) is sometimes referred to as a pilot light, but no matter what you call it, its purpose is to serve as a small ignition flame for the gas burner. And when this little flame fails to operate properly or go out, it's one of the most common reasons a gas furnace will fail to operate.
A blue flame means you are getting a good gas/air mixture. If it is orange or yellow then there is more gas than air and should be adjusted.
with gas? hence gas furnace? theres a gas pipe that puts the gas into 3-4 tube things tht keep lit by the gas bruhhh
In any heat source that produced by the flames, the color indicate the temperature. Blue is the hottest followed by yellow and orange.
Well like with any flame, the lighter the flame, the higher the temperature of the flame. If the flam is burning Yellow, it is at a higher temperature and is burning more oxygen than an orange flame is. That is your difference other than the color.
Improper gas/air mixture.
The main circuit board in your furnace sends a small ac signal to the flame rod so now you have an ac potential from the body of the furnace to the flame rod, When the flame comes on between the body of the furnace and the rod it rectifies the ac in to dc, The flame actually acts like a diode. When this dc voltage is sensed by the control board it knows there is a flame present and thus keeps the gas valve on. Hope this helps
Pilot gas is the very small flow/burner used to maintain an ignition flame in a gas appliance. Sometimes called a pilot light, or pilot flame, it's used to ignite the main burner.
The sodium turns the flame bright orange..
The color of sodium in flame is yellow (not orange) and it is due to an emission line from the sodium spectrum.
AC voltage(at least 90vac) pass through the flame sensor and the ionization of the flame creates or rectifies the voltage to DC and a small microamp that can be measured with a meterl.
The flame appears to have an orange color depending on the amount of gas being burned. The orange color is also due to the light spectrum that your eyes are catching.
The orange-yellow (or even red-black) gas flame is the coolest (350oC), the white-blue flame is much hotter.
an electric furnace runs off of 208/230 Volts while a typical gas furnace runs off of 120 also a gas furnace will have a valve for the gas relay where the gas enters the furnace.
The hotter a hydrocarbon gas burns, the bluer the flame. An orange flame indicates a cool flame with incomplete combustion since soot (unburnt carbon) glows orange. Hydrogen gas burns so completely and so hot that it emits light in the ultraviolet. You cannot see a hydrogen gas flame. Alcohol fires, similarly, tend to burn very efficiently and are nearly invisible--as anybody who watches NASCAR races knows.
A flame sensor is a safety mechanism installed on gas furnaces. It is located directly between the burners and the gas supply. When your gas kicks on, the flame sensor MUST detect a flame. This safety mechanism is to prevent your house from filling up with un-lit gas. Even if your burners are igniting, if your Flame Sensor is dirty (covered in carbon from typical use) it will fault out, thus shutting off the furnace over and over. If this is the case, your furnace will kick on every 2 minutes (because the thermostat tells it your house is too cold) and then will shut off after 5 or 10 seconds as a result of the Flame Sensor Fault.
Natural gas furnaces work by combining natural gas with air and lighting it. This results in a flame that heats up the air and warms the rest of the house.
The yellow flame of a Bunsen burner indicates the presence of carbon particles (soot) and an incomplete combustion of methane gas.
I'm assuming you mean the furnace? If the pilot light keeps going out on the furnace, you probably have a rusted through or cracked heat exchanger. Unfortunately the only way to fix the problem is to replace the furnace. IM THE ONE WHO ASKED THE QUESTIONN THIS IS NOT A FURNACE IT IS A GAS HEATER THAT HE PUT IN HIS DINNING ROOM
You can find a schematic for a gas furnace on the website, Uncionradio.
Probably the flame sensor.