I didn't know cooking pasta was this complicated. Directions:
1) Fill pan with hot water (your water heater already expended a ton of energy heating the water, why waste that? Or if you have an energy efficient water heater that only heats water when you turn the tap on, well that's still tons more efficient than a gas or electric stove top).
2) Put pan on the stove and add copious amounts of water.
3) Insert pasta and wait ~10 minutes, or to your personal texture preference.
4) Drain pasta and place on plate.
5) Eat pasta; a good pasta is usually tasty just on its own.
I think hot water leaches more stuff from your pipes, but it's probably not a big deal. The value in using less water is it takes money and time to heat extra water.
PS: There are lots of ways you can make it cheaper or faster such as covering the pot while you wait for the water to boil. In the end it's not a big deal, but if it's saving you time and money why not?
1) Fill pan with hot water (your water heater already expended a ton of energy heating the water, why waste that? Or if you have an energy efficient water heater that only heats water when you turn the tap on, well that's still tons more efficient than a gas or electric stove top).
2) Put pan on the stove and add copious amounts of water.
3) Insert pasta and wait ~10 minutes, or to your personal texture preference.
4) Drain pasta and place on plate.
5) Eat pasta; a good pasta is usually tasty just on its own.