Thanks for the info you provided me as well!!!! I had seen that formula on a site just wasn't sure... Trying to figure out my loads on my new circuits I'm running in the fishroom....I have 2 dedicated 20 amp breakers just for pumps and lights, and 2 additional 20 amp breakers, 1 is just running the room lighting, and the other is supplying outlet power for my garage and additional outlets in the room....