Office Depot and OfficeMax offers the Comfort Glow Portable Electric 1,200-watt Mini Hearth Desktop Fireplace in Black, model no. EMF161, or White, model no. EMF162, for $51.99. Coupon code "75745348" drops it to $41.59. With free shipping, that's the lowest shipped price we could find by $11. This 10" heater can warm up to 250 square feet.