Heating options - Screened in porch

I'm currently getting an 11'x14' screened in porch added and I'm trying to figure out heating options. My current thought is a ceramic/infrared heater mounted at the top of the 11' side. I had the electrician out today and he's going to run a dedicated 220v circuit for me.

What have you guys used? I'd like to have something mounted high to free up floor space, but other than that I don't have any real requirements.