The rosin in solder is supposed to be a cleaner, not a fuel. If you have fumes and smoke then your soldering iron is way too hot.
My temperature controlled Weller soldering iron doesn't burn the rosin. It also doesn't smoke and it produces no fumes. Instead it makes a pleasant aroma.
My temperature controlled Weller soldering iron doesn't burn the rosin. It also doesn't smoke and it produces no fumes. Instead it makes a pleasant aroma.