I met with the owner of the company today. He is a great guy and said the install was improper right off (he wasn't involved in the original installation). He was very thorough and designed a new configuration (switching the coil and furnace positions) that will put the coil in proper relation to the a new down flow furnace. He indicated there were more issues than just the coil...that some of the duct transitions were not designed well and would cause turbulence. He also wasn't aware of some of the other issues/service calls I had. It is good to know there are still businessman out there that stand behind their product and offer real customer service. Thanks to all of you who gave me insight into the problem. I'm not a HVAC professional, but I do have mechanical ability and felt things weren't as they should be. Have a great day and thanks again.