Comments on the following located at a electrical D-I-Y help site. The author wanted to use the exisiting range circuit for a 120v outlet for use by a new gas stove?

"I removed the 220V receptacle and replaced it with a 110V receptacle. I used the black wire as the hot and the white wire as the neutral. I capped the red (hot) wire and left it in the box. It works like a champ.
I have not done anything to the breaker panel yet. It was already too late in the evening to cut the power so I am leaving that part for the morning. I have to take the breaker with me to Home Depot because there are 10 different types of breakers. I will swith the breaker in the morning to the 20A.
Just out of curiosity, why does it matter if I leave the 50A breaker there?? "


Rick Miell