12/27: warmth (promptly) restored
I wrote earlier this year about the new HVAC system we got installed. It turns out that they didn't hook something up quite right when they put it in (it's a new-to-them model, and they're still learning its ways). The result: last night was chilly! But Chris called the company this morning, and they sent someone over quickly. Now the house is back to its cozy temperature.