Propane is a gas under standard conditions, meaning that it generally does not freeze. However, when the temperature outside drops to freezing or below, propane can become liquid and eventually freeze. While this does not happen often, it is possible for liquid propane to freeze if it gets cold enough.
When liquid propane freezes, ice crystals form in the container it’s stored in and create a blockage that prevents more of the fuel from coming out. This typically happens when temperatures reach 10 degrees Fahrenheit (-12 Celsius) or lower. The ice crystals cannot pass through the regulators and other valves in the propane system so they will build up until all fuel flow stops completely.
If your area is prone to freezing temperatures during the winter months you should take steps to prevent your propane tank from freezing. You can do this by making sure your tank is properly insulated, especially around the regulator and valve systems that come out of the tank. An extra layer of insulation around these areas will help keep them warmer and reduce any chance that they would freeze due to extreme cold weather. Additionally, if you live in an area where temperatures drop to near or below 10°F (-12°C) then you should consider using anti-freeze in your lines as a precautionary measure.
Although it’s uncommon for propane tanks to freeze on their own due to extreme temperatures, taking extra precautions can help ensure that you don’t find yourself without fuel when you need it most.
