7 Best Propane Heaters: Patio, Garage and Portable Picks

Using a propane heater is a practical solution for those living in areas where power outages happen often. You can use it too when the space you wish to warm is far from a power outlet or doesn’t have one at all.

But with so many products available today, how would you know which one is the best for you?

Before anything else, you must be aware that not all propane heaters are built for both indoor and outdoor use. Moreover, while propane is used as a primary space heating fuel in many US homes in the Northeast and Midwest, propane-run portable devices are usually designed to work only as supplemental heating sources for your home.

So if you’re planning to buy a propane-run heater soon, here are some things to consider:

• How and where will you use it
• Size of the area you need to heat
• Safety features
• Cost

📍 Note: We cover all the things above at the end of the article.

Recommended Propane Heaters

Are you ready to jump into the reviews? First, let’s briefly review all the top choices, in case you are in a hurry. After that, you can check out the full reviews.

🔥 Best Overall Propane Heater: Mr. Heater F232000

• Run-time: 0.044 gallons per hour at low heat 0.099 gallons per hour at maximum heat
• BTU: 4,000 to 9,000 BTUs
• Heating space (max): 225 square feet

This portable heater with a fold-down handle runs on a one-pound cylinder. It’s equipped with a Piezo igniter and a single control start knob for automatic ignition. It has a durable porcelain body and a high-quality ceramic burner tile with shock-absorbing insulation.

This Mr. Heater model has an automatic off switch in case it tips over. It also features an oxygen depletion sensor, which shuts the heater off when the oxygen level in the room drops too low.

Owners advise new buyers to open the propane tank valve slowly instead of cranking it open.

Less Expensive Propane Heater: Mr. Heater Little Buddy

• Run-time: about 5.6 hours on a 1-pound disposable propane cylinder
• BTU: 3,800 BTUs
• Heating space (max): 95 square feet

The Little Buddy is the small brother of the Portable Buddy above: a radiant heater that screws straight onto a 1-pound disposable propane cylinder and stands on an 8-inch round base, so it takes up little floor space.

Mr. Heater rates it as indoor-safe: it has an oxygen depletion sensor and a tip-over switch that shut it off, and one button lights it.

At 3,800 BTU it suits a tent, an ice-fishing shelter or a small room, not a garage. As with any propane heater used indoors, keep a window cracked and a carbon monoxide alarm nearby.

Here are other options you can explore if you’re interested in learning more about propane heaters with other features, including models you can consider for specific settings:

Best Patio Propane Heater: Fire Sense Hammered Bronze

• Run-time: approximately 3 hours on disposable LPG cylinders
• BTU: 46,000 BTUs
• Heating space (max): 1,600 square feet

The 89-inch high Fire Sense heater has a very stylish hammered bronze finish. It is equipped with a one-step Piezo igniter and safety grill guard. The propane tank is placed inside a ventilated regulator above the base.

It has an auto shut-off valve in case it tilts or the oxygen level drops to dangerous levels.

The burner assembly should be allowed to cool for 45 minutes before it’s moved away to a storage area because the heater’s surface can reach 1,600 degrees Fahrenheit while it’s on. The 43-pound unit comes with heavy-duty wheels at the base.

Customers are generally pleased with the attractive heater, although some have discovered that the cap nuts on the reflector head rust easily.

Best Propane Heater with Fan: Mr. Heater MH18B

• Run-time: up to 11 hours on two one-pound cylinders, according to Mr. Heater; much longer with a 20-pound tank and hose, depending on the heat setting
• BTU: 4,000 to 18,000 BTUs
• Heating space (max): 450 square feet

The MH18B model of Mr. Heater looks similar to the F232000 model except that it connects to two one-pound cylinders and has three heat settings (4,000, 9,000, and 18,000 BTU) compared to the low and high settings of the F232000. Either an AC adapter or 4D batteries, which are sold separately, can be used to operate the fan.

The heater, which has an accidental tip-over safety and automatic low oxygen shut-off system, can be used indoors and outdoors where local rules allow it. Mr. Heater says some places, such as Massachusetts and Canada, do not allow propane heaters indoors, so check yours.

Unlike the F232000 model, the Mr. Heater MH18B doesn’t have a fold-down handle.

While some buyers don’t find the fan that powerful and some claim that the heater burns too much gas too quickly, this Mr. Heater model has many long-time users who swear by the product.

Best Golf-Cart Propane Heater: Mr. Heater Golf Cart

• Run-time: 5.5 hours
• BTU: 4,000 BTUs
• Heating space (max): 150 square feet

Another patented product from Mr. Heater, this golf cart heater has a wind-resistant burner and a pilot wind guard.

These two features keep the shaver-shaped unit functioning despite windy conditions and no matter what kind of terrain your cart goes through along the golf course. It features a unique 90-degree safety tip-over switch, reducing “nuisance shut-offs” when you hit bumpy paths.

This Mr. Heater model comes with a cup holder adapter that’s compatible with most golf cart cup holders. It fits well enough not to tip over, but it may wobble because it’s top-heavy.

Best Propane Heater with Thermostat: Mr. Heater Vent-Free Blue Flame

• Run-time: 0.926 pounds per hour; 21.59 hours at maximum heat
• BTU: 20,000 BTUs
• Heating space (max): 700 square feet

This blue flame version of the vent-free heater produces heat through convection or by warming the air, unlike its infrared or radiant counterpart, which warms objects and people in front of it. This heater’s electronic ignition is battery-operated.

The heater is equipped with an adjustable thermostat and oxygen depletion sensor, which turns off the device automatically when the level of oxygen in a room drops dangerously low.

This vent-free unit from Mr. Heater can operate either as a free-standing unit or a wall-mounted heater.

The propane heater can warm spaces, although some customers have experienced heavy moisture issues. Vent-free heaters release combustion gases and moisture into the room, so follow the manual on ventilation and keep a carbon monoxide alarm nearby. Mr. Heater also says California completely prohibits vent-free heaters and that most cities do not allow gas heaters in high-rises or apartments, so check your local rules.

Best Propane Heater for a Garage: Mr. Heater 85,000 BTU Forced Air

• Run-time: up to 8.5 hours on a 20-pound tank
• BTU: 85,000 BTU, with variable output
• Heating space (max): 2,125 square feet (Mr. Heater’s figure)

📍 Note: check our reviews on other garage heaters.

Forced-air heaters, also referred to as cannon heaters, use a fan to blast hot air into a space quickly. This Mr. Heater model is built for job sites, barns and big garages: it needs a 20-pound or larger propane cylinder, and the fan needs a 120-volt outlet.

Mr. Heater’s Quiet Burner Technology makes it noticeably quieter than its standard forced-air line, and the variable output lets you turn it down once the space is warm. We used to list the 38,000 BTU F271350 here; Amazon no longer carries it.

Any forced-air propane heater makes carbon monoxide, so run it only with fresh air coming in and keep a carbon monoxide alarm in the space.

What Is Propane?

Propane is a combustible gas that is extracted from crude oil, natural gas, or oil wellhead gas. It’s in liquid form while stored in a tank.

It turns back into a gas when you open the tank valve and the pressure drops. Propane is naturally colorless and odorless, so suppliers add an odorant, ethyl mercaptan, so you can smell a leak.

Propane is a “clean fuel,” compared to diesel and gasoline, which produce soot and scaling or the formation of solid deposits. It still produces carbon monoxide when it burns, so any propane heater needs fresh air and a carbon monoxide alarm nearby.

What Are Propane Heaters and How Do They Work?

Most portable propane heaters burn propane in a flame, behind a radiant tile or in a forced-air burner. Catalytic heaters are a separate type that make heat through a chemical reaction without a visible flame.

In a catalytic heater, a catalyst (usually a platinum-coated plate), propane and oxygen from the room air are the three elements that make up the heat-producing reaction.

Turning on the heater causes the plate to be electrically charged for the chemical reaction to begin. This reaction and heating go on until the fuel source or oxygen is eliminated.

Tips for Choosing the Best Propane Heater

Location: Outdoor vs. Indoor Propane Heaters

The area you wish to heat and the size of that area are, will determine whether you need to buy an outdoor or indoor type of propane heater.

As we’ve mentioned earlier, some propane-based heaters are suitable for outdoor use only, such as your patio, or well-ventilated areas, such as an open garage.

Outdoor patio heaters usually burn fuel faster than indoor heaters, which gives them the higher heat output needed in wide-open spaces.

Meanwhile, you have to look for “indoor-safe” propane heaters if you want to use these types of warmers in closed-off spaces, such as enclosed or partly enclosed patios. To avoid accidents, you also need to check whether your indoor propane heater needs ventilation. Check the manual for the ventilation the heater needs, such as a cracked window or a vent opening of a stated size.

Propane heaters can emit dangerous carbon monoxide gas if they malfunction. So read the descriptions in the product information or manual carefully before buying!

Ignition

Some heaters come with manual ignition and you have to ignite the fuel yourself, which can pose risks to your safety.

Other heaters come with automatic ignition, which is integrated into the heater body so you just turn on the device for ignition or combustion to happen automatically.

Choose high-quality products if you want to go for integrated ignition as auto igniters of cheaper propane heaters can wear out over time and you might end up igniting fuel manually.

Heating Size

Even if you’re warming an outdoor environment, try to measure the area that you wish to provide heating to ensure that the heater you will buy will be powerful enough to cover the entire space.

To determine the heat output you need to:

1. Measure the space in cubic feet (length times width times ceiling height, all in feet)
2. Find the difference between the current temperature and your desired temperature (in degrees Fahrenheit)
3. Multiply the cubic feet by the temperature difference, then by 0.133. The result is the BTU per hour you need as a starting point, and poor insulation or drafts mean you need more. Divide the BTU by 3.41 to convert it to watts.

Portability

Most people buy propane-run heaters because they are portable. Check for handles and caster wheels.

This will minimize lifting on your part and increase safety because there’s a chance of dropping the heater if its fuel tank is full and heavy. Check the product description to determine how heavy your heater can be once you fill the tank.

For safety purposes, you may have to empty the heater’s tank before moving it to another location.

Safety Features

Look for a heater with a thermostat and an automatic kill switch for overheating or tip-over, which lower the risk of fire.

Read your product’s manual when it comes to the required clearance or distance between the heater and combustible materials.

Choose indoor propane heaters with oxygen level detectors. Never use outdoor heaters indoors.

Propane vs. Electric Heaters: Operating Costs and Efficiency

To determine which is cheaper in your area, check the price of propane against your power consumption per kilowatt-hour.

📍 Note: one gallon of propane holds about 27 kilowatt-hours of heat (91,452 BTU, at 3,412 BTU per kWh).

Multiply your power rate per kWh. The latest U.S. average residential price is 18.31 cents per kWh (July 2026, according to the U.S. Energy Information Administration).

Example: $0.1831 x 27 = $4.94

Check the price of propane on the U.S. Energy Information Administration website. The U.S. average residential price is $2.64 per gallon, excluding taxes, in the week of October 12, 2026.

In this case, propane ($2.64) is less expensive than electricity ($4.94) for the same amount of heat.

If you are looking to save money and find the most efficient heater, then check our dedicated article on the most energy-efficient space heaters

You can also compare the energy efficiency of a propane-run device with an electric one by using this example. For instance, you want to see how these two power sources fare in terms of running a 2,500-watt heater for eight hours. That heater would use 20 kWh over the eight hours, which is about 0.74 gallons of propane (20 divided by 27).

Using the U.S. averages above, propane costs less for the same heat. That is a cost comparison, not an efficiency one, and it assumes the heater puts nearly all of its heat into the room, as a vent-free or radiant unit does. A vented heater sends some up the flue.

Electricity: $0.1831 x 20 kWh = $3.66

Propane: $2.64 x 0.74 gallons = $1.95