Cats are locked away in the guest "suite," and I'm stuck hanging out around the house while a bunch of guys do work. It sure beats CO poisoning, but dang it makes for a boring day.
We called in a guy because the blower fan relay crapped out and the fan was running constantly. He fixed that, but in his checks discovered the heat exchanger had a crack in it, which would do a great job of pumping exhaust fumes into the entire house. Thankfully we were already planning to be out of town all weekend, and it's only chilly enough to just toss on a sweatshirt and be fine (50°...)
So... only replacing the furnace 5 years ahead of planned. Yay?