What causes black smoke from oil furnace?
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Moreover, why is my oil furnace blowing black smoke?
After Fire. After fire is a result of improper burning or an oil leak. During combustion, a small amount of oil puddles in the bottom of the combustion chamber. Because it is not controlled and the fan has turned off, it quickly consumes the oxygen in the combustion chamber and produces thick clouds of black smoke.
Additionally, why does my oil furnace smoke? Fumes. If you smell oil, it generally means your system requires maintenance. The fumes can be dangerous and may signal a crack or misalignment in your oil burner. The smoke from the unburned oil can move into the surrounding fresh air chamber–the heat exchanger—that then circulates into the house.
Also asked, what does black smoke coming out of chimney mean?
If the smoke is black, the furnace is not burning the oil completely and fuel is being wasted. During the heating season, check the smoke from the chimney. If the smoke is black, the furnace is not burning the oil completely and fuel is being wasted.
Why is my oil boiler smoking?
If you see soot or smoke emanating from your oil-fired boiler, sometimes accompanied by increased boiler noise, the condition is usually caused by “puffback.” A puffback occurs when unburned oil in the bottom of the combustion chamber is heated up and explodes.