Stove Temp guy. Feed rate 4 blower on as low as it will go , vary the temp setting from 1.5 [ warm days] to 4 [ cold days 20
and less] I avg. 24 to 30 hrs / 40 lb bag nice toasty house in the 70
's . This works for me 3rd year now.
Tried room temp thing once didn't like it BIG flames, low flames ,no flames .
Bottom line is experiment see what works best for You . I really don't think this is a One Size fits all deal to many variables.