Fire was reported at 515 Bethlehem Pike, Whitemarsh Township, Montgomery County, PA.  Chief 29 arrived on scene and reported heavy fire throughout the first and second floors of a two story single family dwelling, 25 x 35, with initial reports of entrapment.  Two additional engines and one ladder were special called to the scene, before the second alarm was filled out.  The building was evacuated due to heavy fire conditions and the fire was placed under control using exterior handlines, deck guns, and ladder pipes.  Two civilians and three firefighters injured were transported to the hospital for treatment.