Good idea trying to use up some of the extra heat from the boiler room. I would've done the same thing!
That concrete floor is awesome! Also like your bump out - it looks much better as a half-height than if you had just gone around the ducts themselves. Nice creative solution.
I know, right? So much more gooder than having to read all those letters/words/sentences/punctuations stuff! (We probably would've been great at translating hieroglyphics!)
Finished the west elevation (siding & roof) today. Blame the dang short daylight for no pics, just about dark at 4:15!