Are Propane Heaters Safe for Indoor Use? Risks and Safety Tips

While propane heaters come with some inherent risks, certain types of propane heaters are safe to use indoors

woman at home wrapped in blanket
Photo: Westend61 / Getty Images
woman at home wrapped in blanket
Photo: Westend61 / Getty Images
Highlights
  • If you take the proper precautions, it's safe to use certain propane heaters indoors.

  • However, there are some risks involved with running propane heaters inside.

  • Carbon monoxide poisoning and fire are two of the biggest dangers.

  • To stay safe, turn the heater off before bed and keep it clean.

  • You should also keep kids, pets, and household objects away from the heater.

Get quotes from up to 3 pros!
Enter a zip below and get matched to top-rated pros near you.
Geo Icon

Propane heaters are a great way to banish winter chills and stay warm indoors and out. But you may be wondering about their safety risks and for good reason. While propane leaks can cause fires and carbon monoxide poisoning if undetected, indoor propane heaters are safe to use if you exercise caution. We’ve broken down everything you need to know.

Safety tips for using propane heaters indoors, including install carbon monoxide detectors and turn it off before bed

What Are Propane Heaters?

In practice, propane heaters work in much the same way as natural gas-powered heaters, except that they use propane as fuel instead of natural gas. Propane is stored as a liquid in a propane tank, which is then attached to the heater. Propane is then converted into a gas and burned to generate heat.

Are Propane Heaters Safe to Use Indoors?

Like natural gas, using propane to heat your home comes with a small amount of risk, including the possibility of carbon monoxide poisoning and fire. So, are propane heaters safe for indoors? 

If you use your heater properly, propane is a relatively safe way to heat your home. Some homes are even heated entirely using propane. You can also use propane heaters outside to make your outdoor living space cozier during cool temperatures.

Can You Use Propane Heaters Indoors?

woman on the couch drinking tea
Photo: Drobot Dean / Adobe Stock

Before you buy a heater to warm up your home, make sure you understand what propane heaters are safe to use indoors. (Hint: It’s pretty straightforward.) Indoor propane heaters, which are designed to be used, as their name suggests, indoors, are safe to use inside your home. On the other hand, you should never use an outdoor propane heater inside. 

Indoor propane heaters have an automatic shutoff mechanism that turns the heater off if too much carbon monoxide or carbon dioxide accumulates, while outdoor propane heaters do not have that feature. You can still use outdoor propane heaters outside in an area with good air circulation.

Risks of Using Propane Heaters Indoors 

Are indoor propane heaters safe? Yes, but there are some risks involved, including fire and carbon monoxide poisoning.

Carbon Monoxide Poisoning

Like natural gas, burning propane releases carbon monoxide, which can cause deadly carbon monoxide poisoning. Carbon monoxide is colorless and odorless, so it can be difficult to detect carbon monoxide poisoning until it’s too late. That’s why it’s essential to have working carbon monoxide detectors in any house, especially one that’s heated using propane. 

You should install working carbon monoxide detectors on every floor of your house, particularly near bedrooms, and test them regularly.

Fires

Propane is also extremely flammable. If there’s a leak in your propane tank, there’s a serious risk that a fire could break out in your home. Because propane is heavier than air, it tends to sink to the ground, stick in the nooks and crannies of your home, and can be ignited by flames, sparks, or even static electricity.

Tips for Using an Indoor Propane Heater Safely

Before you can enjoy the toasty-warm heat your new propane heater provides, there are some safety tips you should know.

  • Make it a practice to shut the heater off before going to bed. 

  • Keep kids, pets, and household items three feet away from the heater at all times. 

  • Do not store items on top of the heater. 

  • Avoid spraying hair spray, aerosol sprays, or perfume in the room where the heater is in use or was recently in use.

  • If your heater has a weird smell, turn it off immediately and contact a furnace repair person in your area.

  • Clean your heater regularly to keep it working properly.

Margaret Wack contributed to this article.

Frequently Asked Questions

To prevent carbon monoxide poisoning on a propane heater, make sure that your heater is suitable for indoor use. When you run the heater, it should always be in a well-ventilated area with proper air circulation. Installing carbon monoxide detectors on every level of your home is also essential. If you have any questions about using a heater indoors, contact a local heating and oil company for more information.

For a few reasons, you should never sleep in a room with a propane heater running. Sleeping near a propane heater puts you at risk of carbon monoxide poisoning because you could inhale a dangerous amount of the gas without even realizing it. Leaving your heater on overnight is also a fire hazard.

Indoor propane heaters are safe to use in a garage. You may be able to use an outdoor propane heater inside a garage in some instances, as long as the garage door remains open and there’s constant airflow to allow the carbon dioxide and carbon monoxide to escape. Other garage heaters include electric heaters and gas heaters.

Gas heaters, like propane heaters, are a good space heater option that you can use inside and outside. However, following all safety warnings when using them indoors is important. Electric space heaters are also popular because they’re budget-friendly, portable, and easy to maintain. Other options to consider include radiant and baseboard space heaters.

There are several factors to consider when buying a furnace. First, think about what type of furnace you want. Single-stage furnaces are most common, but you could also opt for a two-stage or multi-stage model. You’ll also want to pick your preferred heating system (gas, electric, or propane) and the right size furnace for your home.

Need professional help with your project?
Get quotes from top-rated pros.
The homeowners guide to heating and air conditioning services
From average costs to expert advice, get all the answers you need to get your job done.
Air conditioner in grown greenery on background
Jan 29, 2025
Jan 29, 2025
If you’re having problems with your air conditioner’s condenser, it may be time for an upgrade. Learn about the cost to replace an AC condenser in this guide.
A family relaxing in the living room
Jan 29, 2025
Jan 29, 2025
Regularly replacing your HVAC filter is vital for a healthy system. Learn how much an HVAC filter replacement costs with this informative guide.
Man at crafting table in garage
Jan 29, 2025
Jan 29, 2025
A mini-split allows for zoned cooling, helpful for cooling spaces like garages. Learn the cost to install a mini-split unit in a garage with this guide.
A little boy sitting on the floor in front of a big fan
Jan 29, 2025
Jan 29, 2025
If your AC went out, you probably want to have it fixed—and fast. Learn six common reasons your AC could be on the fritz and possible solutions.
An HVAC unit in the backyard of a house
Jan 28, 2025
Jan 28, 2025
When the HVAC is busted, it’s helpful to know the difference between a blower versus a fan to schedule the correct repair. Here’s how to tell the difference.
Couple sitting on the floor enjoying free time
Jan 29, 2025
Jan 29, 2025
These annual and seasonal steps will keep your heating and cooling system ready for any changes throughout the year. Follow these tips for best results.
Share project details to get started.