Last night I fired up the EKO. I have 500 gallons of storage. My starting temp on the top of the tank as well as the bottom of the tank were 100 degrees. I burned a mix of woods (mostly pine, some birch, some maple, various others) for about 6 hours. This brought my tank upper and lower temps to 170 degrees. The only draw from this tank was 40 gallons of DHW thru a plate exchanger located around 50 feet away in the basement. My flue temps were in the 425-475 degree zone for the bulk of the time. My secondary burn looked great, and the amount of wood seemed to be in line at around 3/4-A full box (I did not weigh it). Does this seem like a long time to get the tank up to temp? I see others heating 1000 gallons in that amount of time. Is there more tweaking to be done or is this in line with other's results. I also have an alpha circ for my storage loop. It was telling me it was circulating 10-12 GPM for much of this time. Most of the time the water exiting the boiler was 170-180 degrees. Thanks in advance for any comments.