But imagine when you want to warm yourself up in a cold time, instead of plunging a simple heater in, you have to deal with a machine which might even need to c

But imagine when you want to warm yourself up in a cold time, instead of plunging a simple heater in, you have to deal with a machine which might even need to connect to internet to work (if looking at current IoT devices is any indication). I don't like to deal with such a complexity, unless they make it so simple that I can gift a crypto heater to my suburban grandma and not worry about installing it for her.