Quick Answer
Determine the right size propane tank for RV use by calculating the daily propane consumption based on appliance usage and multiplying it by the number of days the tank will need to last, then refer to manufacturer's tank sizing charts for guidance.
Calculating Daily Propane Consumption
To determine the right size propane tank for your RV, start by calculating your daily propane consumption. Estimate the total BTUs (British Thermal Units) required by your appliances per day, such as your refrigerator, stove, and air conditioning. Use the following estimates: 1,000 BTUs for a small fridge, 10,000 BTUs for a medium stove, and 15,000 BTUs for a large air conditioner. Add up the BTUs for each appliance, then multiply by the number of days the tank will need to last, usually 7-14 days.
Referring to Manufacturer’s Tank Sizing Charts
After calculating your daily propane consumption, refer to the manufacturer’s tank sizing charts for guidance. Look for a chart that lists the tank size in gallons and the corresponding BTU capacity. Choose a tank size that is slightly larger than your estimated daily consumption to account for unexpected usage and efficiency losses. For example, if your daily consumption is 2,500 BTUs, choose a 4-6 gallon tank that can hold at least 12,000-18,000 BTUs.
Additional Considerations
Additional factors to consider when selecting a propane tank for your RV include the tank’s weight, the vehicle’s towing capacity, and the tank’s location relative to the RV’s appliances. Consider a horizontal tank for easier installation and access, and choose a tank with a built-in regulator to simplify connections. Finally, ensure that the tank is certified by a recognized testing organization, such as the U.S. Department of Transportation or the American Society for Testing and Materials (ASTM).
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