Should Propane Tanks Be Stored Empty or Full?

The question of whether to store propane tanks empty or full often arises among homeowners and business owners alike. The decision can be crucial to ensuring safe and efficient propane usage. In this article, we’ll explore the pros and cons of each storage method and provide guidance on the best practices for propane tank storage.

The Risks of Storing Propane Tanks Empty

Storing propane tanks in an empty state can pose several risks, particularly if the tanks are not properly sealed. For instance, I once came across a house that had been empty for 49 years. The propane tank had some amount of gas left within it, but removing the remaining gas was necessary before the tank could be moved. This situation highlights the potential hazards of leaving a tank partially filled or completely empty.

When propane tanks are left full, they are protected from external factors. However, when they are empty, they are vulnerable to moisture and air, which can lead to rust and structural damage over time. This deterioration can compromise the integrity of the tank, making it unsafe and potentially dangerous to use later on.

The Advantages of Storing Propane Tanks Full

The consensus amongst professionals is that it is better to store propane tanks full. This method ensures the preservation of the tank’s structural integrity and safety.

Let’s consider the case of closing the valve on an empty tank. Air, which contains moisture, can enter the tank and cause internal rusting. This process can gradually weaken the tank material, potentially leading to cracks or other damage that could result in a gas leak.

Propane’s Indefinite Storage

One of the significant advantages of propane is its ability to be stored for extended periods without losing its energy or requiring special storage conditions. Unlike some other fuels, propane remains stable and free from degradation when stored properly. This characteristic makes it an ideal choice for long-term storage.

Based on this characteristic, there is no inherent advantage to storing empty propane tanks. Instead, it makes more sense to have propane readily available whenever needed. This approach ensures that you can use the energy stored in the tank without worrying about the fuel degrading.

Best Practices for Propane Tank Storage

To ensure the long-term safety and effectiveness of your propane tanks, it is recommended to follow these best practices:

Full Storage: Always store propane tanks full to prevent moisture buildup and rusting.

Sealed Valves: Keep the valves on empty tanks closed to protect the internal components from moisture and dust.

Regular Inspections: Periodically inspect your propane tanks for any signs of wear, damage, or rust.

Proper Disposal: If replacing or disposing of old tanks, ensure they are handled by a licensed professional to avoid leaks or environmental contamination.

Professional Refilling: Have your portable propane tanks refilled as soon as they are emptied to maintain a constant supply.

Storing propane tanks in a full state minimizes the risk of corrosion and ensures that you always have access to the energy you need whenever demanded. This approach aligns with the professional recommendations and best practices in the industry.

Frequently Asked Questions (FAQs)

Question 1: Can I store my propane tank empty during the winter months?

No, it is generally not recommended to store propane tanks empty during the winter or any other season. Keeping the tanks full prevents the build-up of moisture and minimizes the risk of internal corrosion.

Question 2: What causes propane tanks to rust?

Rust in propane tanks is primarily caused by moisture that enters the tank through an open valve. When air (which contains moisture) is allowed into a partially empty or empty tank, it can cause internal rusting, weakening the tank’s structure over time.

Question 3: What should I do if my propane tank is damaged?

If you notice any damage to your propane tank, it is crucial to have it inspected by a professional. Do not attempt to repair the tank yourself as it could be dangerous. Consider replacing the tank or having it repaired by a certified service provider to ensure safety.