which is best condensing water heater in California region?

by Sophia
(San Diego)

Hi, I have recently shifted to San Diego. I am planning to buy my own Water Heater but have couple of queries. Can you help me to select a better water heater. My queries are:

1. Best condensing water heater?
2. Where to locate my water heater- within the premises or outside?
3. What should be Vent material for my water heater?

Thanks