1. Different uses: heating oil is mainly used for heating domestic, commercial and industrial buildings, while fuel oil is mainly used in power generation, industrial production, transportation and other fields.
2. Different viscosities: the heating oil has high viscosity and the heat generated during combustion is relatively stable; However, the viscosity of fuel is low and the heat generated during combustion is high.
3. Different sulfur content: the sulfur content of fuel oil is low, and less pollutants are produced during combustion; However, the sulfur content of fuel is high, and there are many pollutants produced during combustion.
4. Different prices: Due to different uses and production processes, the price of heating oil is generally lower, while the price of fuel oil is higher.
In a word, heating oil and fuel oil are petroleum products, but their uses, properties and prices are different.