At the place I'm staying now, there's a hair dryer prominently labeled as 1875 Watts. That's... a lot. A 5000 BTU/hour window air conditioner is 1465 Watts. Small and effective  space heaters are often 1000 or 1500 Watts. No wonder hair dryers can trip breakers.
 Unless trying to heat a cavernous and leaky basement on low power.