In our house with two full bathrooms I'd like to replace our 40 gallon gas water heater with a tankless/endless-water heater.

Any advice on where to start looking for information on what kind of heaters might be best are really appreciated. I really have no idea where to even start looking.

Quality is more important than price. Looking for something that is pretty powerful for our situation of two full baths, washing machine and kitchen, and is also of a quality that is sure to last a long time.

I hope that my assumption is correct that any plumber should be able to take our old water heater out and redo the water and gas lines to fit the new heater?

Thanks for any help,

- Erik