FDNY on Instagram: "🥶❄️Temperatures will dip below freezing Monday night. We remind New Yorkers to be safe while using space heaters. -Plug space heaters directly into the wall outlet. -Never plug them into power strips or extension cords as they can overheat and start a fire. -Only one appliance should be plugged into an outlet at a time. -Keep a space heater at least three feet away from combustibles. -Turn off when you leave a room or go to bed. For more safety tips, visit FDNYSmart.org."