No, it is not safe or recommended to burn used motor oil in an indoor fireplace or wood stove. Burning used motor oil or any other non-approved substances indoors can pose significant health and environmental hazards.
Used motor oil contains a mixture of harmful chemicals and pollutants that can be released into the air when burned. Some of the components found in used motor oil include heavy metals, toxic substances, and combustion byproducts, such as sulfur and nitrogen oxides. These pollutants can lead to the release of harmful fumes and particles, which can severely impact indoor air quality and pose health risks to occupants.
Additionally, burning used motor oil in a fireplace or wood stove can result in incomplete combustion, leading to the production of toxic and carcinogenic compounds like polycyclic aromatic hydrocarbons (PAHs). PAHs are harmful chemicals that can be absorbed into the respiratory system and are known to cause various health problems.
Furthermore, burning non-approved substances can damage the fireplace or wood stove and create creosote buildup in the chimney, increasing the risk of chimney fires.
If you have used motor oil to dispose of, it is essential to follow proper recycling or disposal methods. Many auto parts stores or recycling centers accept used motor oil for proper recycling or disposal. Never burn it as a way to get rid of it, especially indoors, as it can have severe consequences for both human health and the environment. Always prioritize safety and environmental responsibility when dealing with any type of waste material.