First off welcome.
I see you have the absolute best Hard Coal Stoker / Boiler on the market (I am very biased!!!
You will love it...
I have a very similar setup, OLD 2 story home 1890's. Keep it at 71 degrees. An average burning season Oct 10 to May 20's I burn about 6 to 7 tons. the colder it is the closer to 7 tons etc..