Just a little after 01:44am Task force 15 was alerted to 325 Linden Ave for a dwelling. Ladder 516 hit the street within minutes with 4. 1501 arrived on scene nothing showing from a one story dwelling. 1501 advised 516 upon arrival to lead off with a TIC and a Can. 516's crew found a small fire in the heater vent of the basement. The crew knocked the fire with a water can and checked for extension.