Dad is 88 and over the winter I got him a small space heater that he can run during the day when I’m at work if he gets cold. I was under the impression he used that heater for no more than an hour or so each day. What I’ve learned is that heater is on almost constantly when I’m away from the house. That might be only a little over a dollar each day in electricity but it adds another $35-$40 to the monthly electric bill. He has an electric blanket in his bedroom that he uses at night which requires far less electricity. I’ve decided to get him another small electric blanket that he can put around him when he needs additional heat in the Family Room.