Propane is a clean burning, reliable fuel used for home heating, cooking, water heaters, generators, farm equipment and industrial processes. Choosing the right tank size makes sure you have enough fuel without paying for more capacity than you need. Here is a simple guide.

Residential Tank Sizes

Small tanks (around 120 gallons): Good for one or two appliances like a water heater or range.
Mid-size tanks (around 250 to 500 gallons): Common for homes that heat with propane and run several appliances.
Large residential tanks (around 1,000 gallons): For larger homes, pools, generators and properties with high demand.

Commercial and Industrial Tanks

Farms, factories and distributors often need much larger storage. Skid tanks are large ASME rated tanks mounted on steel skids, making them easier to move and set up on site. They come in sizes into the tens of thousands of gallons. Tank trailers like MC-331 units are built to transport propane and other liquefied gases on the road.

Above Ground vs Underground

Above ground tanks are easier to install, inspect and maintain, and usually cost less. Underground tanks are hidden from view, which many homeowners prefer, but installation costs more and needs proper excavation.

How to Choose the Right Size

List every appliance that will run on propane.
Think about your climate. Colder areas burn more fuel for heating.
Consider how often you want deliveries. A bigger tank means fewer refills.
Plan for future additions like a generator or pool heater.

Safety and Regulations

Propane tanks must meet safety standards like ASME or DOT ratings, and installations must follow local codes, including how far the tank sits from buildings and property lines. Always have a licensed professional install and connect your tank, and check permit requirements in your area.

New vs Used Tanks

Used tanks can save money, but they should be inspected and recertified as needed before use. Ask for the tank’s data plate details and inspection history.

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Propane tank installation in the U.S. follows NFPA 58, the Liquefied Petroleum Gas Code.