Boy, I sure am asking quite a bit lately!
Have a room addition with a baseboard heater in it that barely runs. It is capable of running 110 or 220 but is running at 110 now.
It is the only item on the circuit run with 12awg wire.
Can I just mark the nuetral (white) wire and connect it to a second breaker ( I have an available 220 double gang breaker from an old electric water heater that is unused.)
Would this work. I have read that this is an option.

Awaiting your knowledge!

Curtis