Ethel Powers Lutz Heingartner, 82, who twice left Germany after the outbreaks of two world wars, died Monday at George Washington University Hospital following surgery. She had suffered a stroke two years ago.

An American citizen, she spent many years in Germany, first as a child when her father represented an American business firm in Frankfurt, and later when her husband, Robert Heingartner, a U.S. Foreign Service officer, was consul general in that city.

Mrs. Heingartner was born in Beverly, Mass., and first went to Germany at the age of 4. She was educated at schools in Frankfurt.

Just before this country entered World War I, she and her family boarded the last ship to leave Germany bound for the United States. She later returned to Germany and in 1935 married Heingartner, who was her second husband.

Her daughter, Beverly Price, with who she made her home in Washington, recalled that at one time she and her mother attended a meeting in Germany addressed by Adolf Hitler.

Her mother, he said, "bullied her way" through the crowd to confront Hitler. In fluent German, her mother proclaimed she was an American citizen and emphasized her distaste for his policy on Jews, Mrs. Price said.

In 1939, Mrs. Heingartner, her husband and children returned to this country on the SS Manhattan, along with such notables as Arturo Toscanini, the conductor.

The family then lived in Saskatchewan, where Heingartner was U.S. consul general. He died there in 1942.

Mrs. Heingartner then lived in Texas, San Francisco and Boston until moving here 20 years ago. She made a number of visits to Germany over the years. She had been active in All Souls' Unitarian Church here.

In addition to her daughter, she is survived by a son, Frederick Earle Lutz, of Alice Tex.; a brother, Newell A. Powers, of Frankfurt, and two grandchildren.

The family suggests that expressions of sympathy may be made to Independent Living for the Handicapped Inc., Washington.