It’s a common misconception that propane-powered engines, such as the ones that are used to prop up houses, can be dangerous.
But that’s not the case, according to a recent study from Purdue University.
“Propane engines are not dangerous,” the study said.
“However, they can have harmful side effects.”
The researchers found that propylene, the primary fuel in propane, can become a toxic gas when it comes in contact with air.
The researchers also found that when a propane engine is parked outside of a house, it’s possible for the gas to leak inside.
The gas is released in an audible sound and a flaring effect that can be uncomfortable and even scary.
“If you are outdoors, be aware of your surroundings and use common sense,” the researchers wrote in their study.
The research comes as California is preparing to begin using more advanced technologies to reduce greenhouse gas emissions.
Propane can also be used to power lighting in buildings, so the new study isn’t necessarily the first to show the dangers of propane in homes.