GE hot water heaters are made by Rheem.
California
California
yes
Tankless water heaters have been around about 30 years. I believe they may have first been used on European trains.
Yes, the tankless water heaters do cost more than the normal water heaters because tankless water heaters are designed to supply hot water only when needed unlike normal ones.
American Water Heaters.
Solar heaters are useful for heating water with natural energy, thus saving electricity. The question is can effective solar heaters be made for less cost than using the electricity.
They are made in various places in US, Canada and Mexico
Electric water heaters have not carbon monoxide.
American Water Heaters
You can buy water heaters from any home hardware store.