I use an oil heater, but that's not why I am replying. I found a programmable thermostat that plugs into an outlet and you plug your heater into it, a Lux WIN100 Heating & Cooling Programmable Outlet Thermostat
. It would work equally well with a ceramic heater. Just buy a cheaper heater without the thermostat built-in and turn it up. The outlet thermostat does the controlling. I'm very pleased with mine.
I had a Honeywell oil radiator with a digital thermostat and the thermostat failed. One of my neighbors had the same problem. His got so hot that the plastic wheels melted.
The outlet thermostat and a cheaper heater come to about the price of a heater with the thermostat built-in, but it's more versatile. You can program times for it to adjust the temperature and even different schedules for the weekend.
I do like the oil radiators and a fan for circulation better than ceramic heaters, though. They are really quiet, but take a while to heat up and take up more floor space. Like everything else, pluses and minuses.