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.
1 A conventional electric water heater will come with a black wire and a red wire which are connected to the wires of the same color as described above. 2  The ground wire is attached to the green ground screw which is in the same wiring junction box compartment which is built into the top of the water heater.