Thanks to a thread over on the LF forum I was lead to an e-bay seller with 8 water temp units. These were "Powers Fotopanels" and they were $60. I had looked at all the new water line connection methods out there, such as 'Gatorbite,' 'Sharkbite,' PEX etc. and decided to go with copper. The main issue is that this taps into a residential supply (my HOME!) and any issues with the pipes would affect the family. Also, the daycare we use recently flooded awhile back. It happened over a weekend when they were closed and it was from a bad pipe. It caused thousands worth of damage. So, I'm keeping with the copper with soldered joints, which is the gold standard for plumbing. So, here is a shot of the stuff as I get ready for the installation.