Is it safe to keep propane tank outside?

Quick Answer

It is generally safe to keep a propane tank outside as long as proper precautions are taken. The main risks are corrosion, theft, and exposure to extreme weather. Following safety guidelines like protecting the tank from corrosion, securing it against theft, and sheltering it from weather extremes can mitigate these risks. With proper setup and precautions, outdoor propane tanks can be a safe and convenient way to supply gas for many outdoor applications.

Overview of Propane Tank Storage

Propane is a very common fuel used for heating, cooking, and powering various appliances. It is typically stored in pressurized tanks and supplied through a regulator to the appliance being used. There are a few main options when it comes to storing propane tanks:

  • Small portable tanks – These are the familiar small, cylindrical tanks used for grills and camp stoves. They hold 5-40 pounds of propane.
  • Larger portable tanks – These larger tanks hold up to 100 pounds of propane and are used for larger appliances, temporary heating, or backup power.
  • ASME stationary tanks – These fixed, large capacity tanks are permanently installed and hold between 120-1,000 gallons of propane. They require professional installation.

This article focuses primarily on storage of small to medium-sized portable tanks between 5 to 100 pounds in capacity. These are commonly used for household appliances, pools and spas, outdoor kitchens, heating, and backup generators.

Is it Allowed to Keep Propane Outside?

There are no laws prohibiting keeping propane tanks outside. The National Fire Protection Association (NFPA) Code 58 provides guidelines and best practices for safe propane storage and handling, both inside and outside.

Some key NFPA recommendations for outdoor propane storage include:

  • Tanks should be kept at least 10 feet from buildings and property lines.
  • Tanks larger than 125 gallons should be at least 25 feet from buildings.
  • Tanks should not be located beneath building exits, stairways, or fire escapes.
  • Tanks should be secured upright to prevent tipping and damage.

Following these and other safety guidelines allows for the secure outdoor storage of propane tanks. Always check local ordinances as well for any additional restrictions.

Is it Safe to Store Propane Tanks Outside?

Storing propane tanks outside poses some risks, but is generally safe when certain precautions are taken. Some of the major safety considerations include:

Corrosion

Outdoor elements like sunlight, water, and salt air can corrode and compromise a propane tank over time. Rust and corrosion can cause leaks, valve failures, and other malfunctions.

Recommendations for preventing corrosion:

  • Use only DOT-certified propane tanks which have corrosion resistance requirements.
  • Keep tanks painted and maintain protective coatings.
  • Place tanks on surfaces like concrete pads or bricks to avoid direct contact with soil or moisture.
  • Cover tanks with weather protection like ventilated enclosures or tarps.
  • Avoid contact with corrosive materials like road salt, fertilizer, or pesticides.
  • Regularly inspect tanks for any signs of corrosion or rust.

Theft

Portable propane tanks are an attractive target for theft due to their resale value. Adequately securing tanks is important for preventing theft.

Recommendations for preventing theft:

  • Lock tanks with a quality padlock and chain.
  • Secure tanks to a permanent structure with sturdy bolts or cables.
  • Install security lighting and cameras to deter potential thieves.
  • Store tanks in a locked, fenced-in area when possible.
  • Label tanks with owner contact information.
  • Report any attempted or successful theft to the police.

Weather Conditions

Outdoor propane tanks can be exposed to temperature extremes, precipitation, wind, and other weather that could impact safety.

Recommendations for sheltering tanks:

  • Have an approved weatherproof enclosure such as a ventilated shed or cabinet.
  • Avoid locations with excessive cold, heat, humidity, or salt air.
  • Keep tanks upright and anchored so they cannot tip over in winds.
  • Use waterproof coverings like tarps to protect from precipitation.
  • Consider a propane tank blankets to moderate temperature extremes.
  • Elevate tanks above ground level for moisture protection.

Proper weather protections can allow propane tanks to safely withstand outdoor elements.

Other Safety Tips

Beyond addressing corrosion, theft, and weather, some other general safety tips for outdoor propane storage include:

  • Follow all tank distance requirements from buildings, exits, and property lines.
  • Clear vegetation and combustibles away from tank storage areas.
  • Post “No Smoking” signs around tanks.
  • Always transport, handle, and secure tanks upright to avoid valve damage.
  • Ensure appliances connected to tanks are approved for outdoor use and properly installed.
  • Place tanks on level, stable surfaces that won’t shift or sink.
  • Avoid locations near potential ignition sources like grills, fire pits, or clothes dryer vents.

Following fire code requirements and maintaining safe setups are key to securely storing propane outside.

Benefits of Outdoor Propane Storage

Despite some risks requiring precautions, there are a number of benefits that make outdoor propane storage desirable:

  • Convenience – Easy access for outdoor appliances, pools, or patio heaters without the need to transport tanks in and out.
  • Aesthetics – Allows for a clean look without visible tanks or lines running into the house.
  • Safety – Reduces potential risks associated with large quantities of flammable gas being stored indoors.
  • Independence – Provides utility backup with an independent fuel supply in the event of an outage.
  • Flexibility – More options for tank placement to suit equipment locations and comply with fire codes.

Outdoor storage offers significant advantages in many situations. And potential hazards can be readily managed by following basic safety protocols.

Outdoor Appliances Using Propane

Some of the most common outdoor propane applications include:

Grills and Smokers

Propane is the most popular fuel for outdoor cooking. Small tanks connect directly to grills and smokers for convenient, instant ignition. Portable grills can also easily be moved for storage or cleaning. Larger permanent grills may have a dedicated tank or hook to a larger household tank.

Fire Pits

Fire pits have become a popular backyard feature and propane a preferred fuel source. Tanks can connect directly to the burner system below the fire pit surface. This avoids the need to feed a live fire. Propane fire pits provide ambiance and warmth with a simple control knob.

Pool Heaters

Heating a swimming pool requires a large energy input. Often propane pool heaters offer the most cost effective and convenient solution. They rapidly heat water and allow the pool to be used even during cooler weather. Pool heaters will require medium or large tanks to run continuously.

Outdoor Kitchens

Complete outdoor kitchens equipped with propane appliances are a luxury home feature. From grills and side burners to refrigerators and even televisions, outdoor kitchens allow cooking and entertainment to spill seamlessly into the yard space. They require a larger dedicated propane tank.

Patio Heaters

Propane patio heaters extend the use of outdoor spaces into colder seasons with directed radiant heat. Small tanks can fuel free-standing or permanently installed heaters. They allow outdoor dining or social events to continue well beyond the summer months.

Backup Generators

Propane generators provide backup electricity in the event of a power outage. They are often installed outdoors with a direct feed from a large tank. Propane fuel won’t degrade or run stale like gasoline and allows long-term generator readiness.

Outdoor Lighting

Propane lamps offer decorative lighting options for gardens, pathways, and other exterior spaces. Cylinder tanks can feed torch-style or lantern fixtures for an ambient glow. Propane avoids the need to run wiring for electric fixtures.

Miscellaneous

Almost any outdoor appliance can potentially be outfitted to run on propane. Some other examples include space heaters, evaporative coolers, dehumidifiers, air conditioners, and water heaters. Propane fuel allows flexible placement not limited by access to electricity.

Connecting Propane Tanks Safely

When connecting a propane tank to supply an outdoor appliance, safety should always come first. Here are some tips for safe connections:

  • Make sure all lines and fittings are the appropriate type for propane. Use only approved parts that are labelled as propane-ready.
  • Verify the maximum capacity of the regulator, valves, piping, and hoses exceeds the rating of the appliance. This prevents bottlenecks.
  • Ensure the tank is compatible with the regulator and has the correct outlet fitting.
  • Perform leak checks on all connections before first use and periodically thereafter. Apply leak detector fluid or soap solution to joints.
  • Avoid unregulated direct tank connections. The appliance should have its own regulator in addition to the tank regulator.
  • Position tanks upright and secure in place when connected to appliances.
  • Keep all lines and hoses safely away from walking paths or heat sources where they could be damaged.
  • Consider installing protective covers over exposed lines and fittings.
  • Never modify or override safety valves or protections on tanks or appliances.

Proper parts selection, leak checks, and ongoing maintenance are critical for keeping propane supply systems safe. Always follow manufacturer instructions and guidance from a certified propane professional.

Inspecting and Maintaining Outdoor Tanks

Routine inspection and maintenance is key to keeping outdoor propane tanks in safe operating condition over the long term. Recommended inspection and maintenance practices include:

Annual Tank Inspections

Have tanks inspected at least yearly by a qualified propane supplier. They will check:

  • Tank pressure, valves, and connections for leaks with leak detector solution
  • Corrosion, dents, or other signs of damage on the tank
  • Proper operation of valve handwheels, relief valves, and other components
  • Needed repainting or reconditioning of tank coatings

Annual inspections help identify any issues before they become unsafe defects requiring tank replacement.

Monthly Visual Inspections

The tank owner should visually check their tanks at least monthly to look for any signs of:

  • Leaks – Use soapy water on valves, fittings, piping, and hose connections
  • Corrosion – Check paint condition and for rust spots
  • Damage – Dents, gouges, bulging, or other tank defects
  • Tampering – Check locks, caps, fittings, and tank stability

Monthly inspections supplement annual checks to catch any new issues.

Maintenance

Based on inspection findings, perform maintenance like:

  • Repainting areas showing corrosion or paint damage
  • Addressing any leaks or having defective valves or parts replaced
  • Anchoring tanks more securely if they have shifted position
  • Lubricating valves and regulators per manufacturer specifications
  • Replacing damaged or worn filler caps, washers, or screws
  • Having any dents or cosmetic tank damage professionally assessed

Well maintained tanks will have a significantly longer lifetime and operating safety.

Safety Steps if You Suspect a Leak

Propane leaks can pose an explosion hazard and should be addressed immediately if detected or suspected around a tank. Safety response steps include:

  1. Evacuate the area – Move at least 150 feet away from the tank and any vapors.
  2. Call 911 – Alert authorities to the potential leak so they can isolate hazards.
  3. Don’t ignite any sources – Avoid lights, flames, electrical switches, vehicle engines, phones, or anything that could spark ignition.
  4. Don’t try to stop the leak yourself – Leave repair to qualified professionals once the area is evacuated and secured.
  5. Warn others – Alert neighbors and anyone else nearby of the danger so they can also evacuate.
  6. Do not return – Wait for official notice that it is safe to return once the leak has been stopped and vapors dispersed.

Swift response by leaving the area and calling authorities is the most important step. Never take risks trying to stop a propane leak yourself.

Conclusion

Outdoor propane tank storage carries some inherent risks. But those risks can be effectively mitigated by following safety protocols and best practices. With proper handling, exterior tank location offers many advantages and avoids potential downsides of keeping large amounts of flammable gas indoors. Tanks stored outside are extremely common and allow fueling a wide range of outdoor appliances and equipment safely and conveniently. Just be sure to take precautions like:

  • Preventing corrosion and weather damage to tanks
  • Securing tanks firmly in place against theft or tip-over
  • Maintaining safe setback distances from buildings and ignition sources
  • Making connections with certified components and checking for leaks
  • Inspecting tanks regularly for any signs of defects or issues
  • Immediately evacuating and calling authorities if a leak is suspected

With responsible precautions taken, propane tanks can be safely kept outdoors to supply gas for grills, heaters, generators, and specialty appliances. Storing tanks outside can provide flexibility in fueling outdoor amenities while minimizing risks to occupants and structures.

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