Scott is right on the money.
The best thing about the 2400w Mytee heater is it has 4 separate heater cores, each one has it's own switch, if you have a 20amp circuit avail. (Kitchen, bath, etc..) you run all 4, if not you run 3, and if you get in a crisis and Mrs. Piff is blow drying her hair, cooking a pizza, and doing laudry, you could just run 2 of the 4. 8)
There isn't a better tool for $400, especially on a single cord.