<p>I am suspecting that the roomie is struggling with rent and thinks this “solution” will help his budget in the winter…however, he hasn’t thought this thru…cold showers, washing clothes (if there is a W/D in the apt), fridge, stove and a whole bunch of other energy uses. </p>
<p>And, depending on where they live, they can’t let things get too cold…the pipes could freeze.</p>
<p>I do think a compromise needs to be had. The roomie could fear that the OP’s son is going to run the heat too much and drive up the bill. Does their thermostat have programmable settings? Those can cut costs. If they keep their thermostat at around 68, it will still be cool, but it won’t be freezing. </p>
<p>I know that my younger son was annoyed that one of his housemates kept the AC too low and they had outrageous electric bills because of it…and it’s not fair to split costs when one person is abusing the situation by using too much and causing others to help pay. </p>