How Close Can a Patio Heater Be to the Ceiling?

  • by: Joshua Cooper
  • Reading time: 5 min.
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A patio heater can change your outdoor experience by providing the comfort you need. But at the same time, you must be careful and follow all the manufacturer guidelines to ensure your safety and everyone else on the patio.

Patio Heater Ceiling Distance

So how close can a patio heater be to the ceiling? A patio heater must be placed 300-500mm from the covered patio. This will give enough space for the heated air and the cold air to circulate.

Also, it prevents the outdoor heater from heating the roof and causing a fire. If you are using an outdoor patio using radiation, it should be placed 1100mm from the wall to avoid overheating the wall.

How Close Can a Patio Heater Be to the Roof?

Some people are hesitant to use patio heaters as there have been cases where they have caused a fire. But it is safe to use all types of patio heaters from propane heaters, natural gas heaters, mushroom heaters, gas heaters, and all the other types.

The trick to ensuring safety is to follow all the manufacturer rules, and most of all, ensure the outdoor heater is placed at the right distance to give the hot air an outlet.

What is the right distance?

Although it’s good to note that the distance you place the device will depend on the heat produced by the heater per hour. The manufacturer’s instructions give more insight.

For outdoor heaters, they must be 300-500mm away from the top part. Putting the heater at the right distance and creating room for good air circulation ensures proper heat distribution and prevents the covered patio from overheating.

For safety precautions, make sure your patio heaters and the propane tank go for servicing after every two years to ensure they are safe to use.

Can a Patio Heater Be Used Under a Roof?

All patio heaters have safety measures that ensure the safety of the heaters. For example, they come with an automatic turn-off switch for the power or the gas if the outdoor heaters tilt. But this doesn’t mean they are 100% safe. That’s why you should follow all the safety standards to ensure you and your friends are safe.

One of the frequently asked questions is, are patio heaters safe for under roof use? Yes, they are. You can use them under a covered patio.

All you need is to ensure you is that the site you observe has the right clearance. Every type of outdoor heater has its own clearance on the manual. Therefore, go through the manual before setting the heater up.

It’s good to note that outdoor heaters should not be used indoors as they are designed to cooperate with an open circulation of air. For safety, get an appropriate home heater, and preferably an electric patio that doesn’t have an open flame.

Mount them in a safe place in your home where no baby can access them. If you use fire pits, you risk inhaling the harmful product, which is toxic fumes.

For propane patio heaters and natural gas patio heaters, they should be kept away from any flammable material as they can catch fire.

How Many Btus Do I Need to Heat My Patio?

To know if the heat on your patio is enough or you need more, you need to know how many BTUs you need for the patio. For portable heaters, they produce between 35000 to 50000 heating, which requires a clearance of around 30inches all around.

With the above BTUs heating, the patio cover around 1500 to 2000. To ensure you get the right patio heater make sure you balance between the power and spaces.

In case a natural gas heater has fewer BTUs, you can use more than one outdoor heater; all you need is to ensure they have enough space for circulation.

Can I Use a Patio Heater Under a Gazebo?

You have the freedom to use a patio heater under a gazebo. However, there are strict guidelines that you have to follow. Another alternative is using electric heaters if the guidelines are more demanding for you.

The design of your gazebo determines the type of heater you will use. Some gazebos have a small enclosed space. On the other hand, there are those designed with entirely closed spaces.

Natural gas patio heaters emit fumes that would be fatal if inhaled in excess. Consequently, using an electric heater will facilitate your outdoor comfort without the fear of intoxication.

After all, this has been said, your new question is, “how do I choose the correct patio heater?” Well, you have to understand the size of your gazebo and the amount of money you aim to spend on heating your outdoor space.

Another question that may arise is, how windy is your patio area? The wind intensity in your outdoor patio dictates the position of the outdoor patio heater. Ensure you place it in the right position when you are in your outdoor space.

Safety in Using Patio Heaters

Some people take advantage of the emerging heat technology. As a result, safety standards have been set to ensure heaters have enough clearance to avoid a fire.

A covered patio has a few items that have to be considered to ensure it is safe for people. A few inches of clearance from the patio’s roof should be allowed. This clearance reduces the chances of flames getting to the patio cover resulting in a fire catastrophe.

Patio heaters can be used in restaurant patios as long as the recommended inches of clearance from the patio roof are met. If you tap fuel directly from a gas line, position your heater near the natural gas lines to cut costs. Furthermore, the rules set by the city’s fire department of patio heater use must be followed.

If you decide to use an outdoor gas heater in a covered patio, make sure that the tanks don’t leak. The product of a leak-proof patio heater is it can execute its patio heater work efficiently. If you get a strange smell when working with mushroom heaters, notify the city’s authority.


Patio heaters are the best heat source for your patios. All you need is to follow the manufacturer’s manual.

They come with a different fuel source, some of which are portable, and hence you can use them in any outdoor space.

Ensure you confirm the distance you need to place your electric patio heaters from the roof according to the manual, as various heaters have different spacing depending on the heat they omit.