How Long Does a Propane Tank Last on a Patio Heater

How Long Does a Propane Tank Last on a Patio Heater

Whether during a party with friends or some memorable moments with our family members, many of us spend a good time on our patio. While you have such a good time, during the night, the temperature can fall. And if it is winter, then it doesn’t matter what time of the day, you must get a patio heater for proper comfort and relaxation.

Having a propane tank to keep your patio heater on is an ideal thing to do. A propane tank has so many advantages. Today’s we will talk about how long your patio heater can run on a full tank before needing more fuel.

How Long Will Your Propane Heater Last on a Full Tank?

It is practically impossible to give you a solid number regarding the matter because the durability of a propane heater depends on two factors. Firstly, the tank capacity is a necessary factor for obvious reasons.

The other factor is the BTU of the heater. Heaters come with different BTUs, and a propane heater usually features around 41,000 BTUs. 20 lbs. are a usual amount for propane tanks. One 20lb propane tank will have around 432,000 BTU. Now, all you have to do is divide the BTU of the propane with the heater’s BTU. That will result in 10.53.

It means that a 20 lbs. propane tank usually lasts for 10.5 hours on a patio heater.

Why Propane Heaters are the Best Choice as Patio Heaters

There are a number of benefits you can get by using a propane tank to fuel up your patio heater. Below, you can find some short explanations.

  • It is eco-friendly- Propane burns clean and smooth. It leaves nothing that can be the cause of any environmental pollution. As such, using it is also harmless for your health.
  • Easy to Use- Using a propane tank to run a heater is pretty effortless, and it doesn’t require any experience.
  • Availability- You can find lots of propane patio heaters on the market. There are different shapes, sizes, and functions on them. Whether you want a portable heater or a heavy-duty propane patio heater, you will find it.
  • Effortless- You won’t need to keep paying attention to the propane heater once you set it up. It is unlike a bonfire, where you need to keep adding logs to maintain the flame.
  • Efficient- Lastly, it is the main point that we are talking about. Even a smaller propane tank keeps the heater on for a very long time. You can pretty much run the heater for around 10 hours with only a 20 lbs. propane tank. That is not only cost-efficient, but it lets you enjoy your patio time even longer.

FAQ about Propane Patio Heater

What Other Factors Should I Check While Getting a Propane Patio Heater?

You should pay attention to what the BTU of the heater is. The other factors will be its size, controlling system, heating area, and mounting type. Also, make sure that the heater has an anti-tip safety feature.

Should I Get a Free-Standing Propane Heater or a Wall-Mounting One for Patio?

It depends on your preference and the layout of your patio. But since you may not have any wall nearby, getting a free-standing heater will be better. It will also let you put it anywhere you want. There are also those with a dual-mounting feature for extra convenience.

What Is AFUE of a Patio Heater?

AFUE stands for annual fuel utilization efficiency. It is kind of as it sounds. The higher AFUE, the more energy-efficient your propane patio heater is.


We hope that you understand how the unit of BTU works in calculating the durability of a propane patio heater. Before buying an outdoor heater, we will suggest you check their BTU levels and make sure that it will last enough for the whole time you want to stay outside.

Propane heaters are usually small and portable, which adds to their advantages. They also look decorative when on your patio. If you live in a much colder place, the heater may last shorter than usual.

So, keep that in mind during the purchase too.

Last Updated on October 6, 2021 by Vernon Scott

Vernon Scott

Vernon is the founder of this cool ( read HOT! ) website. He's superbly experienced on heating technologies as well as having clear ideas about modern heating appliances. Vernon has called him " I am a hot ( this time read COOL! ) guy!"

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