Only question is why did i wait so long to add it? Been burning with storage for about a week now. And the added convenince has been great. The house is staying at an even temp and I don't have to run downstairs to add wood last thing at night and first thing in the morning. It was around 0*F last night and storage kept my house at temp all the way down to 119 at the top of the tank. Oil would have kicked on at about 110. Here is what I started with, which worked fine but I wouldnt want to go back to it.