At the start of the year (2021), it was suggested to me on another forum that heating tape might stave off formation of condensation on the bottom metal sill of a poorly insulated window. It is a rental unit in a highrise, and the windows will not be replaced any time soon.
It was suggested that heating tape might be found in pet stores for terrariums that house reptiles. None of the stores in my city have them. Googling revealed that there are pipe heating heat tape and heating cables.
I prefer the heating cables, despite their greater expense, since they are self-regulating. I was thinking of taping them down to the bottom sill with heavy duty outdoor tape.
Does this sound like a reasonable solution?
P.S. Over the years, I've had to use a dehumidifier on maximum, but it really takes a toll on the lungs. On cold days, even running it continuously is not sufficient.