well i have changed my design and saved a bunch om money in the process with my siphone nozzle set up i have now. No block heater will be needed. Russ i'm having trouble trying to get the pics posted at the library. So i will see a friend this week and post what i have done. But when you see how i have changed the design it makes it obsolete to use that chunk of aluiminum and just keep a j-tube and the siphon nozzle. So far with all i have done i'm up to 120 dollars in my build to include my constant level device as well. I can't wait to get the pics up on here to show you my build.