Rico in Spanish means rich in English just if your talking about money. If your talking about food rico means it's delicious, good, etc. Example, esto huele rico mean this smell good or  que Rica la comida means like delicious food in English. Puerto Rico means Rich Port in Spanish.
Tankless or demand-type water heaters heat water directly without the use of a storage tank. Heat pump water heaters move heat from one place to another instead of generating heat directly for providing hot water. Solar water heaters use the sun's heat to provide hot water.
The only things you will have to do is get a plumber to relocate the lines and an electrician to connect the heater to the appropriate breakers. An electrical tankless hot water heater will require two or more 220-volt 40 to 60 amp circuits, so it is best if you have a certified electrician install it for you.