Which is best electric or gas water heaters. How much do they cost to install?

If you have gas, stick with it. You’d have to make changes in your wiring to make changes for a electric one. It would only add to the cost and, the differences wouldn’t be worth it in a long run.

A gas or electric water heater will run anywhere from $350.00 to as much as $600.00 for a thirty gallon heater. It is what you want. You can get a ten year or a twenty year, a forty gallon or a twenty gallon.

See the man and talk to him, see what they tell you at Home Depot or Lowes.