Just after lunch, the building assignment (Merion Fire Co of Ardmore and Bryn Mawr) went out for the 100 block of Sheldon Lane in Ardmore. Lower Merion Police quickly arrived and reported heavy smoke showing from a twin home. The working fire upgrade brought Penn Wynne to the scene as the Rapid Intervention Crew (RIC) and Gladwyne for an engine and air truck. Crews worked well together in the frigid temps and snow to extinguish the fire and prevent it from spreading to the adjoining twin.