Propane Fire Pits

It depends on the BTU output of your burner, but a standard 20 lb propane tank holds roughly 430,000 BTUs worth of gas — meaning a 50,000 BTU fire pit will burn for about 9 hours, while a smaller 20,000 BTU burner could last around 22 hours. On a high flame setting, most average fire pits will get 8–10 hours of use per tank. Always check your specific fire pit's BTU rating to get the most accurate estimate.

Cooking over a propane fire pit is not recommended — the cooler yellow flame cannot fully neutralize chemical byproducts of gas combustion, which can leave a sooty residue on your food. Food grease or drippings can also clog the burner and damage the fire media. If you want to cook outdoors, a dedicated fire pit grill designed for wood burning is a much better option.

Propane fire pits are generally safer on decks than wood-burning fire pits because their heat output is controlled and they produce no sparks or embers. A CSA-certified propane fire pit with heat shielding under the burner tray can be used safely on a wood deck, but you should always follow the manufacturer's clearance guidelines. For covered patios, lower-BTU propane fire pits (60,000 BTUs or less) may be permitted, but you need adequate ventilation since gas fires still produce carbon monoxide.

The key difference is the fuel source and flexibility: propane fire pits use portable tanks, making them easy to place anywhere in your yard and move as needed, while natural gas fire pits connect to a fixed gas line and require professional installation. Natural gas is often considered more convenient for permanent setups since you never have to worry about refilling a tank, and it tends to burn slightly cleaner. Both fuel types deliver great flame performance, so the best choice depends on whether your home has a gas line and how much flexibility you want.

Yes — it is always recommended to cover your propane fire pit when not in use, and some manufacturer warranties actually require it. A cover protects internal components like the burner and gas valves from rain, moisture, and debris that can cause costly damage or clog the system. Using a weather-resistant cover also helps prevent rust and extends the overall lifespan of the unit.