Yep,
And a notable mention for purchased electricity that is "free" because it would have gone to heating.
The weather is a changin' in the good ol' USA! Cold fronts, rain, soon snow, and me warming by the ice-blue glow of my miners. Ahhh, a little slice of heaven right there. Really, what else could anybody want?
Except that I believe most homes in the US are heated by natural gas because it costs about 1/3 as much for the same amount of heat. So it'll work for some people, but won't be cost effective for others if they have to compete with miners for whom cost is no concern. At least however the electricity is cheaper in many places in the winter compared to the summer. All my miners are off, by the way... BTC much easier for me to acquire just by buying it.