Aerni & Hitzel is a locally owned family business. We have been delivering heating oil and installing heating and air conditioning equipment in the the Lehigh Valley since 1929!Aerni & Hitzel offers service plans to keep your heating and cooling equipment running in peak condition. A service plan costs just pennies a day, yet can provide big savings and a comforting sense of peace-of-mind no matter what unpleasant surprises might pop up this winter. Please call for more information.