Don't know where my original post on this project ended up but the dual fans and all associated wiring are complete and working per manufacturer (SPAL). I've shot a couple of pics. Initial start-up and testing for leaks, fires, smoke and any other unwanted gremlins were in the garage this evening. Nothing note worthy to report. A shake down cruise to follow once weather cooperates. You know its really black magic the way its engineered. I mean the operation of the fans are dependent wholly on the thermostatic switch, although I did install a simple toggle switch to have an override option again per SPAL. Running 180 stat. Fans cycle on @ roughly 195F and off @ approx. 185F not temp gun tested. Will get one. They seem to move the air...noisy but its a hotrod for crying out load. I won't be convinced until the ambient temps climb and settle out spring/summer and really put the system to the test.