How do you read smoke?

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What does Brown smoke mean in a fire?

unfinished wood Tan/brown smoke indicates unfinished wood that is pyrolizing just prior to ignition (e.g., wood framing and trusses). Is yellow smoke toxic? If the smoke column emitted by the chimney is yellow, the flue gas contains a large amount of sulfide, indicating that the boiler's desulfurization equipment is not put into use. In the production process, chemical plants produce many flammable and explosive gases, many of which are harmful to humans.

Thereof, does white smoke always mean blown head gasket?

If you check your dipstick and discover a pasty white substance, you definitely have head gasket damage. White smoke billowing out of your exhaust means that coolant is likely leaking into the cylinders. Why is smoke coming from my spark plugs? This is because the "umbrella" seals used on the valves don't last very long. This allows small amounts of oil to leak past the valves and into the cylinders. When you start the engine, you get smoke until the oil burns off. It could be this oil smoke is leaking from your exhaust manifold.

Regarding this, why does my car smoke when i start it in the morning?

On a cold winter day or when your car is just starting up in the morning, white smoke isn't a problem. This smoke isn't even smoke at all, but steam - that is, water vapor. Overnight, condensation can collect in the exhaust which will turn into steam as your engine warms up. You can also ask why is my lawn mower blowing blue smoke? The mower blows out Blue or White smoke. This is a sign that the engine is burning excess oil. The excess oil in the engine causes incomplete combustion which will create smoke and a carbon buildup.