Vornado heaters use a unique ‘vortex action’ spinning the air to ... such as a timer and a way to control the fan speed. The Vornado AVH10 has been on the market now for around five years.

is a quite good space heater. It's wonderfully quiet, and Vornado's “vortex” technology—basically a fan rotating into a spiral of plastic that's oriented the opposite way—tends to move hot ...