Before we started Sage Advance, we met Amory Lovins, from the Rocky Mountain Institute at an American Solar Energy Society Symposium at the University of Oregon. He saw our prototype and asks us to build a system to heat the hot tub at the RMI headquarters.

I am looking for photos and drawing of that installation. It was one-of-a-kind, and sadly never lived up to our expectations. I hope to write soon about the terrible installation conditions and the wonderful warmth of Amory and his staff.