Safety Tips for Your Propane Grill & Tank

Date: June 23, 2025

Always Keep Safety on the Menu

There’s nothing like firing up the propane grill in your Tennessee backyard and cooking delicious meals for family and friends. To keep the fun at high levels and to avoid any injuries, please keep these five safety tips in mind before you start up your propane grill.

  • Make sure your grill is at least six feet away from your home and positioned on sturdy and level ground.
  • Never leave the grill unattended when cooking.
  • Never light a gas grill with the lid closed. To light your grill, open the lid before turning on the gas. If the grill doesn’t light after a couple of clicks, turn off the burner, turn the gas off at the tank, and wait 5 or 10 minutes before trying to light it again. If you still have trouble, it’s best to call in a propane pro to find out what’s wrong.
  • Close your grill lid quickly to extinguish small flare-ups. It’s also a good idea to have a portable fire extinguisher or fire blanket nearby—just in case.
  • Never attach or disconnect a propane tank or adjust fittings while the grill is running. If you run out of gas while grilling, turn off all the burners, reconnect the new tank, and re-light the grill.

Safe Handling of Portable Propane Cylinders

Natural disasters such as tornadoes—not an uncommon occurrence in Tennessee—can result in the exposure of propane cylinders (also called tanks or bottles) to a variety of hazardous conditions. This includes impact from flying debris and damage to cylinders from toppling over.

Obviously, any damage can affect the safe operation of cylinders and related equipment. Keep in mind that the cylinder contents are stored under pressure, which can cause the contents to leak if the container or related equipment incurs damage.

Cylinders that have been damaged or leaking can pose serious hazards and must be addressed only by trained emergency responders with HAZMAT training or the cylinder supplier. You should never try to vent or even handle cylinders that you suspect have been damaged.

Contact information for the cylinder supplier is listed on the cylinder label. If a label is not present, the cylinder neck ring can be used to find the cylinder supplier.

Here are other safety tips to follow for your propane cylinders:

  • NEVER store or place a propane cylinder indoors or in an enclosed area such as a basement, garage, shed, or tent.
  • NEVER store or place a propane cylinder in an area of excessive heat (120 degrees or higher) or near a stove, fireplace, or other heat source. The heat builds up pressure inside the cylinder, which may cause the pressure relief valve to release propane. Flash fires or explosions can result from exposing cylinders to excessive heat.
  • NEVER store or place a spare cylinder under or near a barbecue grill.
  • DO NOT smoke or have any ignition sources such as flames or spark-producing electrical tools in the area while handling or transporting cylinders.
  • DO NOT under any circumstances try to modify or repair valves, regulators, or other cylinder or appliance parts.
  • DO NOT leave a propane cylinder inside your vehicle on a hot day and always transport your portable tanks in an upright position.

Remember: propane cylinders incorporate special components such as valves, connectors, and other parts to keep them safe for use with grills and other propane appliances. Damage to any of these parts can cause a gas leak. Don’t risk it! Contact your Tennessee propane company for help.

Leave Your Propane Grill Tank Outdoors

Your portable propane cylinders can certainly stand up to all the rain showers we get during the warm seasons. That’s good news, because you should never store propane tanks of any size in any enclosed environment, including a shed, garage, or your home.

When high winds are involved, however, you need to secure your portable tank outside as best as you can to prevent it from becoming a dangerous flying projectile during a tornado.

If you live in a flood zone, even large stationary propane tanks should be anchored securely to avoid potentially dangerous situations. This is required by the National Fire Protection Agency (NFPA). Your Tennessee propane supplier can give you further advice on this.

How Many Gallons of Propane Does a Grill Tank Hold?

Grill cylinders are typically referred to as 20-lb. tanks, but for safety reasons, they should never be filled to full capacity. Twenty pounds of propane is the equivalent of 4.6 gallons of propane.

A “full” tank for your grill has only about 80% of liquid propane gas to allow space for when the liquid inside warms and expands. There is an Overfill Prevention Device (OPD) built into the cylinder’s valve that will limit the fill to a little less than 20 pounds.

Learn more about handling and transporting small cylinders and other propane safety tips by watching these consumer safety videos.