Choosing a new tankless water heater for a home — whether the application is totally new or a replacement — demands a strategic approach. The unit selected must produce enough hot water for all of the household’s demands, so selecting the appropriate-sized model is imperative.With tankless water heaters, water is heated on demand, removing the need for storage. If a unit is undersized, water will still warm to the temperature you set during installation; however, as heated water starts to run out, water flow will drop to uncomfortable levels to maintain that set temperature.In other words, the household will continue
