Thank you for your kind words.
The weather in Sacramento is mild. Even so, I have toyed with the idea of storm windows to cut down on outside noise, and conserve heat.
I am surprised your steam heat still works. It is a lovely sculpture. My house is 17 years newer, and it has gone through three heating changes. It had coal or wood burner stoves first with no hearth. I don't know of another vintage house in my vicinity that doesn't have a fireplace. That was switched out for hot water heat in the house's first renovation, around 1920. The hard water here clogged those up in short order. Just some 12 years later the steam units were junked in favor of the octopus gas heater. That we still have, and wouldn't change it for anything. We redid the wiring and plumbing.
Stone and brick houses are as smart when the third little piggy made his. In SF, the stone houses generally survived through 1906. You never have to paint them, though people usually do.
After many years listening to many systems, I have never seen or heard the popular Magnepan. I know folks who would never give up their Acoustats. I'll have my Scintillas made into a coffin for me. They can fit me in a fetal position. :)
I can't see where your present speakers are mentioned.