Anyone living in Michigan knows we're having a COLD SNOWY winter. My office at work is never warm enough as I sit by a large window where I can feel the cold air coming in all day. I have this lovely small portable heater that runs constantly while I am at work. I just got this one last year and so far it has been running without any problems. It is 12-7/8" wide by 8-3/4" deep by 10-1/8" high and has twin heating elements to keep me nice and toasty. I move it around quite often, you know how we women are, hot one minute and cold the next. There are 2 heat settings and there is a large area for the warm air to comfort me. I've accidentally left it on overnight but that has never been a problem since the fan kicks on and off to keep a constant temperature. I haven't heard the boss complain about the electric bill so I will be staying warm this winter!