This thread is about placing clothes dryers in living quarters that weren't built for such equipment. In your own house, out in the countryside, you're welcome to wire the neutral leg of a normal 120V circuit to the other side of a double breaker to create a magical 14-gauge 240V clothes dryer circuit. You'd be well advised to keep a fire extinguisher handy, however. If you try to sell or rent that space (or if your house is located in an incorporated town or city), you'll be breaking some of the more reasonable laws we have in this country.
Our discussion was about possible reasonings behind the supposed wait times introduced by a condenser dryer in said article. One hypothesized it was because of a more efficient heating element, which used more power. Also common wall voltage not in the US. I simply let them know that wall voltage for dryers is the same in the US as it is for them.
I also had no idea what you meant by "special" circuit.
There are plenty of appliances that require more than 120V, and operate safely at these voltages.