Fabman, i have a comment/question for you, on your preheater deal, I am using the appleseed type processor so won't get into that, but what I do for the preheater deal and might make a good way of doing it for people expecially with limited space is I took a 52 gallon hot water heater tank out of the shell, and cut the top off at the level of the top heating element, leaving the bottom heating element, and thermostat, then put a valve on the bottom drain opening. This is easy to make, doesn't take up much floor space, and is still very easy to get cold oil into. I just wanted your opinion on that as a working deal.
As far as the processor, the appleseed has it's issues true, but it doesn't take up much room and pretty easy to setup and use for novices like me, maybe once I get a new shop build will get a little more fancy but atleast I have gotten a start on the entire process, and really like running this stuff in my truck wish everyone would start using bio.