–Furnace went out during the night. Came back on AFTER I set up appointment with Steve from Bellows Plumbing/Heating. He spent a while looking at it, ended up cleaning flame sensor. Gave a price for replacing flame sensor, but did not recommend it as it seemed to be fine. $149 service charge. Happy.
–Noticed a NEW pit on Shig western suji, in same area as others near kanji. Got rid of it, but this is scary stuff.