I was just on a job, new construction, and noticed they had installed the fill and vent oil line using copper. I know that every oil company I've ever worked for would not repair these pipes, you had to have the piping redone with black pipe if you had a problem. My question is are you allowed by code to use copper for this purpose? I'm not having any luck looking it up.
If the women don't find you handsome, they should at least find you handy!
in canada we cant use copper fill and vent because the solder used for the connections has a melting temperature less than 1000degrees Fahrenheit. the oil supply line to the furnace is fine because it uses flared connections.