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.
Step 2: How to flush out the hot water heater. 1  DO NOT TURN OFF incoming water supply. 2  Connect a garden hose to the drain valve on the lower side of the water heater. 3  Run the other end of the hose outside and open the valve to drain the hot water heater.