Started cleaning and taking apart the Empire B30. Got more concerned as I went. I could see a bad repair job on the lower sight glass fitting. It didn’t break off but it was pretty weak. Then I questioned why there were different nuts on the bottom. Long story short, 1/8 of a turn with the wrench and the bolt let go. The repair on the boiler explained the mismatched nut and bolt. Now for some renovation and upgrades.