Can Propane Freeze?

Propane is a versatile fuel used for heating, cooking, and powering appliances, especially in cold weather. However, have you ever wondered if propane can freeze? The answer is yes, propane can freeze, but it requires very low temperatures. In this article, we’ll explore the freezing point of propane, the causes of propane freezing, and how to prevent it from happening.

What is Propane?

Propane is a colorless, odorless gas that is a byproduct of natural gas processing and crude oil refining. It is commonly used as a fuel for heating, cooking, and powering appliances such as furnaces, water heaters, and generators. Propane is also used in industrial applications such as metal cutting and welding.

The Freezing Point of Propane

The freezing point of propane is -306.4°F (-188°C), which means it can only freeze at extremely low temperatures. At normal atmospheric pressure, propane remains in a gaseous state until its temperature drops below -44°F (-42°C). At this point, propane starts to condense into a liquid and can be stored in pressurized tanks.

What Causes Propane to Freeze?

Propane can freeze if its temperature drops below its freezing point of -306.4°F (-188°C). However, there are several factors that can contribute to propane freezing, including:

  • Low temperatures: If the temperature drops below the propane freezing point, the propane will begin to freeze.
  • Low propane levels: When there is less propane in the tank, there is less thermal mass to help keep the propane from freezing.
  • Moisture: Moisture can freeze on the outside of the propane tank, reducing the temperature of the propane inside and causing it to freeze.

Signs of Frozen Propane

If your propane tank is frozen, you may notice several signs, including:

  • Reduced or no propane flow
  • Difficulty igniting appliances that run on propane
  • A frosty or icy exterior of the propane tank

How to Prevent Propane from Freezing?

Preventing propane from freezing is important to ensure that you have a reliable source of fuel for your appliances. Here are some tips for preventing propane from freezing:

  • Keep your propane tank full: A full propane tank has more thermal mass, which can help prevent it from freezing.
  • Protect your propane tank: Keep your propane tank out of direct sunlight and away from moisture to prevent it from freezing.
  • Use a propane tank cover: A propane tank cover can help insulate your tank and protect it from freezing temperatures.
  • Install a propane tank heater: A propane tank heater can keep the propane at a safe temperature, preventing it from freezing.

What to Do if Your Propane Freezes?

If your propane tank freezes, there are several steps you can take to safely thaw it:

  • Move the tank to a warmer location: If the propane tank is frozen, move it to a warmer location to help thaw it.
  • Use warm water: Pour warm water over the tank to help thaw the propane.
  • Wait: If the propane tank is only partially frozen, you may be able to wait for the temperature to rise and the propane to thaw naturally.

Propane Storage and Safety Tips

Here are some additional propane storage and safety tips to keep in mind:

  • Always store propane tanks upright: Propane tanks should always be stored in an upright position to prevent the valve from becoming damaged and to ensure the propane remains in the tank.
  • Keep propane tanks away from flammable materials: Propane tanks should be kept away from any flammable materials or ignition sources.
  • Never store propane tanks indoors: Propane tanks should never be stored indoors, as they can leak and create a fire hazard.
  • Perform regular maintenance: Regular maintenance of propane tanks and appliances can help prevent issues such as freezing and leaks.


Propane can freeze, but it requires extremely low temperatures. However, there are several factors that can contribute to propane freezing, including low propane levels and moisture. To prevent propane from freezing, it’s important to keep your propane tank full, protect it from the elements, and use a propane tank heater if necessary. If your propane tank does freeze, there are steps you can take to safely thaw it. By following these tips and practicing propane safety, you can ensure that your propane appliances continue to work properly and safely.