I had a contractor tell me he was installing 2 Rheem ACs and 2 Rheem Furnaces. When I went to register the warranties on line I couldn't because I found out I had 2 Rheem ACs with two ADP coils. The Furnaces are Rudd and Rheem (Not both Rheem). I never contracted for ADP coils. I spent 6 weeks researching units , companies and contractors and choose all Rheem products (I believed that Rheem was the right productfor me). When I asked my contractor about the ADP coils (AND who the heck is ADP anyway) I was told that he has been using ADP for years because the Rheem coild leak and cause problems all the time. While this may be true ...... does anyone have any experience with Rheem/Rudd coils ? ...... It is fraudulent as I was never told I was getting an ADP coil. So what shouild I do..... and does anyone know about ADP coils and Rheem / Rudd coil performance ?