"Steve N." wrote:

If you really need to get 220 quickly and easily [ and do not draw more than
than the 15 or 20 amps of your brealers] you can find two outlets on the
two phases and get one half of the 220 from each.
I did this for a visiting relative from Germany so he could run his electric
shaver. It is still the talk of the relatives...
Since I built my house and did the wiring with Dad's help, I kept a drawing
of all the circuits, I knew that I already had two phases in the guest room.
A couple of cheap extension cords was all it took, with one blade of a
"three prong adaprer" inserted into each hot side of each extension. Guest
220 in 5 minutes!


Using two outlets without some logic to make sure both plugs are
connected is a very dangerous setup. The simplest setup is three
relays, two to detect the 120 VAC on each cord that together energize
the 240 VAC outlet.


--
Service to my country? Been there, Done that, and I've got my DD214 to
prove it.
Member of DAV #85.

Michael A. Terrell
Central Florida