A charcoal grill was the culprit of a south Charlotte house fire that caused an estimated $250k worth of damage on Monday morning, according to the Fire Department. The incident happened around 12:30 a.m. on the 3100 block of Selwyn Avenue near Woodlawn Road. Investigators deemed the fire was accidental, as ‘smoldering embers’ fell through open vents on a charcoal grill. Officials say about 30 firefighters controlled the fire in 37 minutes. There were no injuries to residents or firefighters.