What do you do if you left a propane burner on?
Left the Gas On? Keep Calm and Do These 4 Things! Avoid Flames and Electricity. Even a small flame or spark can ignite the gas in your home. Turn the Gas on Your Stove Off. Usually, this is as simple as turning a nob on the stove. Open Doors and Windows. You need to let the house ventilate for a few hours to ensure all the gas is out. Get Everyone out of the House.