I'm not that intelligent of a person, and I'm still in high school if this helps rest your doubts. I'm doing a project for class that involves hooking a solar panel to a copper tube in order to boil salt water, filthy water (dirt + water), and average water. However, the more I research about this, the more of a chicken I become. One of the solar panels is 12 volts and I'm not offsetting the current any, so it'll be 12 volts constantly going into water. Not to mention the 12 volts are DC. If electrolysis does occur, will the hydrogen gas and oxygen ever condense into water( I feel like an idiot for asking that), and if it does occur will it be dangerous to have a constant 12 volts reverberating in the water. Will it be dangerous just to have hydrogen gas lying around, it seems really unsafe! This will all be in a glass jug so the gasses wouldn't be able to escape anywhere, only to another jar. I figured the copper tube that the wires are connected to would act as some kind of resistance heater, the water would only come in contact with it, but I'm not sure if it will still occur. I only want to BOIL this water, I didn't want all of this!