Transcript for New warnings about outdoor fire pit safety
Play and you could win up to a million dollars. Now to a new alert about using fire pits safely. Home Depot and Lowe's are reporting a surge in fire pit sales. Wi reeve is here on how to stay safe while enjoying them. Good morning. Reporter: Good morning. Last year there were around 3,000 fire pit related injuries according to the consumer products safety commission. But this morning, we are going to keep you safe and informed and show you what can happen when things go wrong. Watch this surveillance footage of a fire pit exploding. She got thrown 10, 12 feet in the air over the top of me. Reporter: Keith and his daughter Chloe were enjoying the fire pit outside their Florida home last winter but had no ventilation and exploded tossing them both in the air and scattering debris across their yard. We were very fortunate to get out of this incident without serious injury or even possibly being killed. Reporter: With families like the fulmers buying fire pits during the pandemic. We would have the opportunity to stay outside longer but stay Fire and health depaments across the country have posted safety alerts. St. Barnabas hospital in new Jersey says it's seeing a rise in fire pit related injuries. These are generally low, below the level of the knee and it's easy to trip and fall into them. Reporter: To show an unattended fire pit can create a house fire, the fire and rescue service conducted a demonstration for "Gma." A fire pit needs to be 10 to 15 feet away from a combustible item. You can't turn your back and leave the fire pit unattended. Reporter: Watch as this fire pit burns too close to a wall. Chairs and holiday decorations and another mistake, it's placed on a wood deck. That fire pit should be on natural grass, dirt or stone patio. Reporter: Within 20 minutes the vinyl siding melting. After 0 minutes the wood wall What occurs people go to bed at night and leave some embers in there and it still burns. Reporter: Minutes later the decorations catch fire and at 45 minutes the chairs collapse into the fire as the deck burns. Fire pits need to be attended. Need to have space and be used properly. Reporter: Coals and ashes can remain hot enough to start a fire for many days after a fire is out. If you are going to make a fire this winter just use general caution, keep an eye on your kids and pets. When done correctly and safely the fire pit can be a whole lot of warm fun this winter. It can be but takes patience getting it started correctly. Yes, it does, George. You'll need to take your time and time out your fire. You don't want to use gasoline or aerosols and don't want the fire to be till going when you go back inside. Some other tips I have here on a nice little list, you want to use a hose to put it out, steadily. Once the ashes and embers go down take the ashes and put them in a metal container and seal the lid and you're successful. Coming up, how familys across the country are finding creative
This transcript has been automatically generated and may not be 100% accurate.