 It's a great deal. It's paid off for me big time. I bought a system from Clark's and they have saved me. This thing is paying for itself to my estimated tune based on previous billing cycles over the last two years. About $4,000. $4,000. That's a lot of money to me. They also have the most amazing and talented plumbers. So if you spring a leak or your AC just is not putting out chilly air,