Is it safe to sleep with a propane tank in the car?

Short answer

Context

People often travel or camp with propane tanks and may want to know if staying overnight in a vehicle with one poses a safety hazard.

When it might be safe

• If the tank is fully closed, undamaged, and upright
• If there is good airflow and ventilation
• If the tank is certified, recently inspected, and kept away from heat

When it is not safe

• Leaks can cause propane gas to build up inside the vehicle
• Propane gas is heavier than air and can displace oxygen
• Sleeping reduces awareness of leaks or symptoms
• Heat or direct sunlight can increase internal pressure of the tank

Possible risks

• Fire or explosion if propane leaks and finds an ignition source
• Suffocation from oxygen displacement in a closed space
• Intoxication or health issues from inhaling propane fumes

Safer alternatives

• Store the propane tank outside the car overnight
• Keep windows open and ventilate the area well
• Use a dedicated propane locker for added safety
• Remove the tank from the passenger compartment if possible

Bottom line

Sleeping in a car with a propane tank inside carries significant risks if not managed carefully. The safest option is to store the tank outside the vehicle, but if that's not possible, ensure the tank is properly closed, keep the area well-ventilated, and check regularly for leaks.

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