Just before New Years my gas heater stopped working. I ordered a new controller and it just arrived and has been installed. I replaced the pilot sensor at the same time so it should be good for a few more years.
I live in a state where electricity is expensive. I didn't want to really know, but I finally had to face it. When I calculate it, the power I was using came to $.50 per hour. The weather has been cold enough that it probably ran 24 hours a day. It managed to keep the greenhouse at 40f so I am hoping for limited damage.