How about a small electric stove.
On sale right now on QVC..COM item #V-33515
Duraflame Portable Stove Heater w/handle & flame effect
The heat is on. Bring a welcome warmth to your bedroom, hallway, office, or den with this cute and compact stove heater from Duraflame. The realistic flame effect features a glowing ember bed, while the decorative handle allows you to easily shift the unit from room to room. So you can stay toasty no matter where you are. From Duraflame.
•Overheat safety protection
•Realistic flame effect with detailed glowing ember bed
•Decorative handle for easy portability
•Measures approximately 17"H x 12-3/4"W x 8"L; Cord 82"L; weighs 9 lbs, 6 oz
•CSA listed; 1-year Limited Manufacturer's Warranty