This story has made me reflect on my two vehicle malfunctions last winter. (Lost the interior heater blower fan on the first, and the catalytic converter the on second.)
Going a bit off topic, but that reminds of a car we had years ago; the car had issues and I had already said enough was enough and that I wouldn't fix anything else on it. Of course it was the middle of winter so the next thing to go was the heater.
So here's a tip for those who may run into this in the future: if your heater goes out and its very cold out (i.e., middle of Canadian Prairies winter cold) the only way to see out of your windshield is to drive around with your windows down. Keeping the temperature the same inside & out keeps the windshield from freezing over inside.
We did that for a while until I broke down and bought a new car. In those days we would have definitely been prepared for the weather if the car broke down
