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 HVAC contractors
From average costs to expert advice, get all the answers you need to get your job done.
Aug 14, 2024
Aug 14, 2024
Springing for HVAC maintenance costs may seem like an extra—and easy-to-ignore—item on your checklist, but it will save you money in the long run.
Father and child playing at home
Aug 26, 2024
Aug 26, 2024
When your heat goes out, it can cause a bit of a panic. But knowledge is power, so let's go over radiator repair costs before that happens.
woman laying on couch under a blanket
Dec 13, 2023
Dec 13, 2023
Switching from oil to a gas heat furnace is a decision that could impact your savings. Before you choose, here’s what you need to know about gas furnaces.
Woman sitting on the couch with her dog
Sep 25, 2024
Sep 25, 2024
When you replace a gas furnace with a heat pump, you reduce your carbon footprint by almost half and can heat your home more efficiently.
Air conditioner units on the patio of a house
Sep 4, 2024
Sep 4, 2024
Regular HVAC tuning can help prevent a number of issues, including heat pump failure. Read about the additional benefits of annual tune-ups in our guide.
Mother helping toddler put on sweater in house
Sep 12, 2024
Sep 12, 2024
If you’re upgrading your HVAC system, you might wonder: What size furnace do I need? We’ll answer that question (and more) in this furnace sizing guide.
Share project details to get started.