Doug Rotermund, owner of Eco Solar, is one of the most dedicated professionals you will meet. My background is in aerospace and high tech systems, with lots of field experience. Whether I was designing satellite systems or flying flight test for the Apollo moon program, I value people with the theoretical knowledge to come up with the best solution and the hands-on experience to properly implement that solution. Doug is well grounded in all aspects of fluid dynamics, thermal theory and pool system designs. The solar heating, pump and filtration system Doug designed and installed for me has exceeded all expectations, especially in the areas of cost savings and thermal performance. Recently, I overheard the two owners of a local solar voltaic company comment on the system Doug installed on my house. They summed up my opinion when I heard one say to the other, "... whoever did [his] system really knew what they were doing... it's beautiful..." I agree!