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Mittal and john purchased gas stoves from a shop,both of which were of same type.After a month of use, they found that mittal's stove produced a yellow

flame, while john stove produced a blue one.Whose gas stove's burner needs to be cleaned?why?


Gas burners burn blue if the ratio of fuel to air is correct. a yellow burner flame is a symptom that the burner is not getting enough air for complete combustion of the gas.correcting this problem involves adjusting the burner's air shutter to admit more air,something that an experienced do-it-yourselfer can do. if you want to fix the problem of yellow flame yourself,allow the stove to cool,remove the top grates and lift up the stove top to expose the burner piping.on most stoves the air shutter is just behind the burner gas valve.it is a sliding plate or tube that covers the burner air vent.loosen the set screw that keeps the shutter from moving.turn the burn on fully and slowly open the shutter until the flame turns blue. retighten the set screw,turn off the burner , lower the stove top and replace the top grates.
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