PID continues to works great, efficiency measured

The PID control continues to work great, after 3 1/2 days the PID seems to be in good control. The graph shows a bit of variation but within 10 degrees which seems within bounds.

3 1/2 days of PID control

During this time period I used an average of 2.15 bags of pellets per day. At 40 lbs. per bag this is 86 lbs per day or 39.09 kg/day. At a cost of $216/ton. this is $9.28/day. I am hoping to reduce this to less than a dollar with chips but before I do, I intend to implement some more mechanisms to reduce fuel usage. More to come with the new year, Merry Christmas, Happy Holidays everyone.